diff --git a/README.MD b/README.MD
index ab18f553f..aa3e5a7f8 100644
--- a/README.MD
+++ b/README.MD
@@ -40,6 +40,7 @@ golang version >= 1.10
 
 # Quick Start
 
+## Hello World
 ```go
 package main
 
@@ -56,8 +57,231 @@ func main() {
     s.Run()
 }
 ```
+## Rich Router
+```go
+package main
 
-[View More..](https://goframe.org/start/index)
+import (
+    "github.com/gogf/gf/g/net/ghttp"
+    "github.com/gogf/gf/g"
+)
+
+func main() {
+    s := g.Server()
+    s.BindHandler("/{class}-{course}/:name/*act", func(r *ghttp.Request) {
+        r.Response.Writeln(r.Get("class"))
+        r.Response.Writeln(r.Get("course"))
+        r.Response.Writeln(r.Get("name"))
+        r.Response.Writeln(r.Get("act"))
+    })
+    s.SetPort(8199)
+    s.Run()
+}
+```
+## Group Routers
+```go
+package main
+
+import (
+	"github.com/gogf/gf/g"
+	"github.com/gogf/gf/g/net/ghttp"
+)
+
+type Object struct {}
+
+func (o *Object) Show(r *ghttp.Request) {
+	r.Response.Writeln("Object Show")
+}
+
+func (o *Object) Delete(r *ghttp.Request) {
+	r.Response.Writeln("Object REST Delete")
+}
+
+func Handler(r *ghttp.Request) {
+	r.Response.Writeln("Handler")
+}
+
+func HookHandler(r *ghttp.Request) {
+	r.Response.Writeln("Hook Handler")
+}
+
+func main() {
+	s     := g.Server()
+	obj   := new(Object)
+	group := s.Group("/api")
+	group.ALL ("*",            HookHandler, ghttp.HOOK_BEFORE_SERVE)
+	group.ALL ("/handler",     Handler)
+	group.ALL ("/obj",         obj)
+	group.GET ("/obj/showit",  obj, "Show")
+	group.REST("/obj/rest",    obj)
+	s.SetPort(8199)
+	s.Run()
+}
+```
+or
+```go
+func main() {
+	s   := g.Server()
+	obj := new(Object)
+	s.Group("/api").Bind([]ghttp.GroupItem{
+		{"ALL",  "*",            HookHandler, ghttp.HOOK_BEFORE_SERVE},
+		{"ALL",  "/handler",     Handler},
+		{"ALL",  "/obj",         obj},
+		{"GET",  "/obj/showit",  obj, "Show"},
+		{"REST", "/obj/rest",    obj},
+	})
+	s.SetPort(8199)
+	s.Run()
+}
+```
+## Multi ports & domains
+```go
+package main
+
+import (
+    "github.com/gogf/gf/g"
+    "github.com/gogf/gf/g/net/ghttp"
+)
+
+func Hello1(r *ghttp.Request) {
+    r.Response.Write("127.0.0.1: Hello1!")
+}
+
+func Hello2(r *ghttp.Request) {
+    r.Response.Write("localhost: Hello2!")
+}
+
+func main() {
+    s := g.Server()
+    s.Domain("127.0.0.1").BindHandler("/", Hello1)
+    s.Domain("localhost").BindHandler("/", Hello2)
+    s.SetPort(8100, 8200, 8300)
+    s.Run()
+}
+```
+## Template Engine
+```go
+package main
+
+import (
+	"github.com/gogf/gf/g"
+	"github.com/gogf/gf/g/net/ghttp"
+)
+
+func main() {
+	s := g.Server()
+	s.BindHandler("/template", func(r *ghttp.Request) {
+		r.Response.WriteTpl("index.tpl", g.Map{
+			"id":   123,
+			"name": "john",
+		})
+	})
+	s.SetPort(8199)
+	s.Run()
+}
+```
+## File Uploading
+```go
+func Upload(r *ghttp.Request) {
+    if f, h, e := r.FormFile("upload-file"); e == nil {
+        defer f.Close()
+        name   := gfile.Basename(h.Filename)
+        buffer := make([]byte, h.Size)
+        f.Read(buffer)
+        gfile.PutBinContents("/tmp/" + name, buffer)
+        r.Response.Write(name + " uploaded successly")
+    } else {
+        r.Response.Write(e.Error())
+    }
+}
+```
+
+## ORM Operations
+
+### 1. Retrieving instance
+```go
+db := g.DB()
+db := g.DB("user-center")
+```
+### 2. Chaining Operations
+
+`Where + string`
+```go
+// SELECT * FROM user WHERE uid>1 LIMIT 0,10
+r, err := db.Table("user").Where("uid > ?", 1).Limit(0, 10).Select()
+
+// SELECT uid,name FROM user WHERE uid>1 LIMIT 0,10
+r, err := db.Table("user").Fileds("uid,name").Where("uid > ?", 1).Limit(0, 10).Select()
+
+// SELECT * FROM user WHERE uid=1
+r, err := db.Table("user").Where("u.uid=1",).One()
+r, err := db.Table("user").Where("u.uid", 1).One()
+r, err := db.Table("user").Where("u.uid=?", 1).One()
+// SELECT * FROM user WHERE (uid=1) AND (name='john')
+r, err := db.Table("user").Where("uid", 1).Where("name", "john").One()
+r, err := db.Table("user").Where("uid=?", 1).And("name=?", "john").One()
+// SELECT * FROM user WHERE (uid=1) OR (name='john')
+r, err := db.Table("user").Where("uid=?", 1).Or("name=?", "john").One()
+```
+`Where + map`
+```go
+// SELECT * FROM user WHERE uid=1 AND name='john'
+r, err := db.Table("user").Where(g.Map{"uid" : 1, "name" : "john"}).One()
+// SELECT * FROM user WHERE uid=1 AND age>18
+r, err := db.Table("user").Where(g.Map{"uid" : 1, "age>" : 18}).One()
+```
+`Where + struct/*struct`
+```go
+type User struct {
+    Id       int    `json:"uid"`
+    UserName string `gconv:"name"`
+}
+// SELECT * FROM user WHERE uid =1 AND name='john'
+r, err := db.Table("user").Where(User{ Id : 1, UserName : "john"}).One()
+// SELECT * FROM user WHERE uid =1
+r, err := db.Table("user").Where(&User{ Id : 1}).One()
+```
+### 3. Update & Delete
+```go
+// UPDATE user SET name='john guo' WHERE name='john'
+r, err := db.Table("user").Data(gdb.Map{"name" : "john guo"}).Where("name=?", "john").Update()
+r, err := db.Table("user").Data("name='john guo'").Where("name=?", "john").Update()
+// UPDATE user SET status=1 ORDER BY login_time asc LIMIT 10
+r, err := db.Table("user").Data("status", 1).OrderBy("login_time asc").Limit(10).Update
+
+// DELETE FROM user WHERE uid=10
+r, err := db.Table("user").Where("uid=?", 10).Delete()
+// DELETE FROM user ORDER BY login_time asc LIMIT 10
+r, err := db.Table("user").OrderBy("login_time asc").Limit(10).Delete()
+```
+### 4. Insert & Replace & Save
+```go
+r, err := db.Table("user").Data(g.Map{"name": "john"}).Insert()
+r, err := db.Table("user").Data(g.Map{"uid": 10000, "name": "john"}).Replace()
+r, err := db.Table("user").Data(g.Map{"uid": 10001, "name": "john"}).Save()
+```
+### 5. Transaction
+```go
+if tx, err := db.Begin(); err == nil {
+    r, err := tx.Save("user", g.Map{
+        "uid"  :  1,
+        "name" : "john",
+    })
+    tx.Commit()
+}
+```
+### 6. Error Handling
+```go
+func GetOrderInfo(id int) (order *Order, err error) {
+    err = g.DB().Table("order").Where("id", id).Struct(&order)
+    if err != nil && err == sql.ErrNoRows {
+        err = nil
+    }
+    return
+}
+```
+
+[More Features...](https://goframe.org/start/index)
 
 
 # License
diff --git a/TODO.MD b/TODO.MD
index 831cc43bd..357d77c94 100644
--- a/TODO.MD
+++ b/TODO.MD
@@ -51,7 +51,6 @@
 1. gdb.Model在链式安全的对象创建中增加sync.Pool的使用；
 1. 增加g.Table快捷方法以方便操作数据表，但是得考虑后续模型操作设计，特别是脚手架的模型管理；
 
-
 # DONE
 1.  gconv完善针对不同类型的判断，例如：尽量减少sprintf("%v", xxx)来执行string类型的转换；
 2.  ghttp.Server请求执行中增加服务退出的方法，不再执行后续操作；
diff --git a/g/container/garray/garray_z_unit_basic_test.go b/g/container/garray/garray_z_unit_basic_test.go
index a387bd3c0..61a40cf5d 100644
--- a/g/container/garray/garray_z_unit_basic_test.go
+++ b/g/container/garray/garray_z_unit_basic_test.go
@@ -31,6 +31,7 @@ func Test_SortedIntArray1(t *testing.T) {
 		array.Add(i)
 	}
 	gtest.Assert(array.Slice(), expect)
+	gtest.Assert(array.Add().Slice(), expect)
 }
 
 func Test_SortedIntArray2(t *testing.T) {
@@ -44,11 +45,15 @@ func Test_SortedIntArray2(t *testing.T) {
 
 func Test_SortedStringArray1(t *testing.T) {
 	expect := []string{"0", "1", "10", "2", "3", "4", "5", "6", "7", "8", "9"}
-	array := garray.NewSortedStringArray()
+	array1 := garray.NewSortedStringArray()
+	array2 := garray.NewSortedStringArray(true)
 	for i := 10; i > -1; i-- {
-		array.Add(gconv.String(i))
+		array1.Add(gconv.String(i))
+		array2.Add(gconv.String(i))
 	}
-	gtest.Assert(array.Slice(), expect)
+	gtest.Assert(array1.Slice(), expect)
+	gtest.Assert(array2.Slice(), expect)
+
 }
 
 func Test_SortedStringArray2(t *testing.T) {
@@ -58,6 +63,8 @@ func Test_SortedStringArray2(t *testing.T) {
 		array.Add(gconv.String(i))
 	}
 	gtest.Assert(array.Slice(), expect)
+	array.Add()
+	gtest.Assert(array.Slice(), expect)
 }
 
 func Test_SortedArray1(t *testing.T) {
@@ -73,13 +80,18 @@ func Test_SortedArray1(t *testing.T) {
 
 func Test_SortedArray2(t *testing.T) {
 	expect := []string{"0", "1", "10", "2", "3", "4", "5", "6", "7", "8", "9"}
-	array := garray.NewSortedArray(func(v1, v2 interface{}) int {
+	func1 := func(v1, v2 interface{}) int {
 		return strings.Compare(gconv.String(v1), gconv.String(v2))
-	})
+	}
+	array := garray.NewSortedArray(func1)
+	array2 := garray.NewSortedArray(func1, true)
 	for i := 0; i <= 10; i++ {
 		array.Add(gconv.String(i))
+		array2.Add(gconv.String(i))
 	}
 	gtest.Assert(array.Slice(), expect)
+	gtest.Assert(array.Add().Slice(), expect)
+	gtest.Assert(array2.Slice(), expect)
 }
 
 func TestNewFromCopy(t *testing.T) {
@@ -89,6 +101,5 @@ func TestNewFromCopy(t *testing.T) {
 		gtest.AssertIN(array1.PopRands(2), a1)
 		gtest.Assert(len(array1.PopRands(1)), 1)
 		gtest.Assert(len(array1.PopRands(9)), 3)
-
 	})
 }
diff --git a/g/container/garray/garray_z_unit_int_test.go b/g/container/garray/garray_z_unit_int_test.go
index 2a65f89f3..1f43da646 100644
--- a/g/container/garray/garray_z_unit_int_test.go
+++ b/g/container/garray/garray_z_unit_int_test.go
@@ -9,7 +9,9 @@
 package garray_test
 
 import (
+	"github.com/gogf/gf/g/util/gconv"
 	"testing"
+	"time"
 
 	"github.com/gogf/gf/g/container/garray"
 	"github.com/gogf/gf/g/test/gtest"
@@ -18,12 +20,15 @@ import (
 func Test_IntArray_Basic(t *testing.T) {
 	gtest.Case(t, func() {
 		expect := []int{0, 1, 2, 3}
+		expect2 := []int{}
 		array := garray.NewIntArrayFrom(expect)
+		array2 := garray.NewIntArrayFrom(expect2)
 		gtest.Assert(array.Slice(), expect)
 		array.Set(0, 100)
 		gtest.Assert(array.Get(0), 100)
 		gtest.Assert(array.Get(1), 1)
 		gtest.Assert(array.Search(100), 0)
+		gtest.Assert(array2.Search(100), -1)
 		gtest.Assert(array.Contains(100), true)
 		gtest.Assert(array.Remove(0), 100)
 		gtest.Assert(array.Contains(100), false)
@@ -44,13 +49,16 @@ func TestIntArray_Sort(t *testing.T) {
 		expect1 := []int{0, 1, 2, 3}
 		expect2 := []int{3, 2, 1, 0}
 		array := garray.NewIntArray()
+		array2 := garray.NewIntArray(true)
 		for i := 3; i >= 0; i-- {
 			array.Append(i)
+			array2.Append(i)
 		}
 		array.Sort()
 		gtest.Assert(array.Slice(), expect1)
 		array.Sort(true)
 		gtest.Assert(array.Slice(), expect2)
+		gtest.Assert(array2.Slice(), expect2)
 	})
 }
 
@@ -98,21 +106,48 @@ func TestIntArray_Range(t *testing.T) {
 	gtest.Case(t, func() {
 		value1 := []int{0, 1, 2, 3, 4, 5, 6}
 		array1 := garray.NewIntArrayFrom(value1)
+		array2 := garray.NewIntArrayFrom(value1, true)
 		gtest.Assert(array1.Range(0, 1), []int{0})
 		gtest.Assert(array1.Range(1, 2), []int{1})
 		gtest.Assert(array1.Range(0, 2), []int{0, 1})
 		gtest.Assert(array1.Range(10, 2), nil)
 		gtest.Assert(array1.Range(-1, 10), value1)
+		gtest.Assert(array2.Range(1, 2), []int{1})
 	})
 }
 
 func TestIntArray_Merge(t *testing.T) {
 	gtest.Case(t, func() {
-		a1 := []int{0, 1, 2, 3}
-		a2 := []int{4, 5, 6, 7}
-		array1 := garray.NewIntArrayFrom(a1)
-		array2 := garray.NewIntArrayFrom(a2)
-		gtest.Assert(array1.Merge(array2).Slice(), []int{0, 1, 2, 3, 4, 5, 6, 7})
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+
+		n1 := []int{0, 1, 2, 3}
+		n2 := []int{4, 5, 6, 7}
+		i1 := []interface{}{"1", "2"}
+		s1 := []string{"a", "b", "c"}
+		s2 := []string{"e", "f"}
+		a1 := garray.NewIntArrayFrom(n1)
+		a2 := garray.NewIntArrayFrom(n2)
+		a3 := garray.NewArrayFrom(i1)
+		a4 := garray.NewStringArrayFrom(s1)
+
+		a5 := garray.NewSortedStringArrayFrom(s2)
+		a6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+
+		a7 := garray.NewSortedStringArrayFrom(s1)
+		a8 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+
+		gtest.Assert(a1.Merge(a2).Slice(), []int{0, 1, 2, 3, 4, 5, 6, 7})
+		gtest.Assert(a1.Merge(a3).Len(), 10)
+		gtest.Assert(a1.Merge(a4).Len(), 13)
+		gtest.Assert(a1.Merge(a5).Len(), 15)
+		gtest.Assert(a1.Merge(a6).Len(), 18)
+		gtest.Assert(a1.Merge(a7).Len(), 21)
+		gtest.Assert(a1.Merge(a8).Len(), 23)
 	})
 }
 
@@ -124,6 +159,7 @@ func TestIntArray_Fill(t *testing.T) {
 		array2 := garray.NewIntArrayFrom(a2)
 		gtest.Assert(array1.Fill(1, 2, 100).Slice(), []int{0, 100, 100})
 		gtest.Assert(array2.Fill(0, 2, 100).Slice(), []int{100, 100})
+		gtest.Assert(array2.Fill(-1, 2, 100).Slice(), []int{100, 100})
 	})
 }
 
@@ -136,6 +172,7 @@ func TestIntArray_Chunk(t *testing.T) {
 		gtest.Assert(chunks[0], []int{1, 2})
 		gtest.Assert(chunks[1], []int{3, 4})
 		gtest.Assert(chunks[2], []int{5})
+		gtest.Assert(array1.Chunk(0), nil)
 	})
 }
 
@@ -153,6 +190,7 @@ func TestIntArray_SubSlice(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []int{0, 1, 2, 3, 4, 5, 6}
 		array1 := garray.NewIntArrayFrom(a1)
+		array2 := garray.NewIntArrayFrom(a1, true)
 		gtest.Assert(array1.SubSlice(6), []int{6})
 		gtest.Assert(array1.SubSlice(5), []int{5, 6})
 		gtest.Assert(array1.SubSlice(8), nil)
@@ -168,6 +206,7 @@ func TestIntArray_SubSlice(t *testing.T) {
 		gtest.Assert(array1.SubSlice(-9, 3), nil)
 		gtest.Assert(array1.SubSlice(1, -1), []int{0})
 		gtest.Assert(array1.SubSlice(1, -3), nil)
+		gtest.Assert(array2.SubSlice(0, 2), []int{0, 1})
 	})
 }
 
@@ -193,7 +232,6 @@ func TestIntArray_PopRands(t *testing.T) {
 		ns2 := array.PopRands(7)
 		gtest.AssertIN(len(ns2), 6)
 		gtest.AssertIN(ns2, []int{100, 200, 300, 400, 500, 600})
-
 	})
 }
 
@@ -226,6 +264,7 @@ func TestNewSortedIntArrayFrom(t *testing.T) {
 		a1 := []int{0, 3, 2, 1, 4, 5, 6}
 		array1 := garray.NewSortedIntArrayFrom(a1, true)
 		gtest.Assert(array1.Join("."), "0.1.2.3.4.5.6")
+		gtest.Assert(array1.Slice(), a1)
 	})
 }
 
@@ -260,7 +299,6 @@ func TestSortedIntArray_Sort(t *testing.T) {
 
 		gtest.Assert(array2.Len(), 4)
 		gtest.Assert(array2, []int{0, 1, 2, 3})
-
 	})
 }
 
@@ -271,7 +309,6 @@ func TestSortedIntArray_Get(t *testing.T) {
 		gtest.Assert(array1.Get(0), 0)
 		gtest.Assert(array1.Get(1), 1)
 		gtest.Assert(array1.Get(3), 5)
-
 	})
 }
 
@@ -296,7 +333,6 @@ func TestSortedIntArray_Remove(t *testing.T) {
 		i3 = array2.Remove(1)
 		gtest.Assert(array2.Search(4), -1)
 		gtest.Assert(i3, 4)
-
 	})
 }
 
@@ -308,7 +344,6 @@ func TestSortedIntArray_PopLeft(t *testing.T) {
 		gtest.Assert(i1, 1)
 		gtest.Assert(array1.Len(), 3)
 		gtest.Assert(array1.Search(1), -1)
-
 	})
 }
 
@@ -348,7 +383,6 @@ func TestSortedIntArray_PopRands(t *testing.T) {
 		gtest.Assert(array2.Len(), 0)
 		gtest.Assert(len(ns2), 4)
 		gtest.AssertIN(ns2, []int{1, 3, 5, 2})
-
 	})
 }
 
@@ -365,7 +399,6 @@ func TestSortedIntArray_PopLefts(t *testing.T) {
 		ns2 := array2.PopLefts(5)
 		gtest.Assert(array2.Len(), 0)
 		gtest.AssertIN(ns2, []int{1, 3, 5, 2})
-
 	})
 }
 
@@ -389,6 +422,7 @@ func TestSortedIntArray_Range(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []int{1, 3, 5, 2, 6, 7}
 		array1 := garray.NewSortedIntArrayFrom(a1)
+		array2 := garray.NewSortedIntArrayFrom(a1, true)
 		ns1 := array1.Range(1, 4)
 		gtest.Assert(len(ns1), 3)
 		gtest.Assert(ns1, []int{2, 3, 5})
@@ -401,7 +435,7 @@ func TestSortedIntArray_Range(t *testing.T) {
 
 		nsl := array1.Range(5, 8)
 		gtest.Assert(len(nsl), 1)
-
+		gtest.Assert(array2.Range(1, 2), []int{2})
 	})
 }
 
@@ -418,7 +452,6 @@ func TestSortedIntArray_Contains(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []int{1, 3, 5}
 		array1 := garray.NewSortedIntArrayFrom(a1)
-		//gtest.Assert(array1.Contains(3),true) //todo 这一行应该返回true
 		gtest.Assert(array1.Contains(4), false)
 	})
 }
@@ -439,7 +472,6 @@ func TestSortedIntArray_Clear(t *testing.T) {
 		array1 := garray.NewSortedIntArrayFrom(a1)
 		array1.Clear()
 		gtest.Assert(array1.Len(), 0)
-
 	})
 }
 
@@ -453,7 +485,6 @@ func TestSortedIntArray_Chunk(t *testing.T) {
 		gtest.Assert(ns1[0], []int{1, 2})
 		gtest.Assert(ns1[2], []int{5})
 		gtest.Assert(len(ns2), 0)
-
 	})
 }
 
@@ -461,6 +492,7 @@ func TestSortedIntArray_SubSlice(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []int{1, 2, 3, 4, 5}
 		array1 := garray.NewSortedIntArrayFrom(a1)
+		array2 := garray.NewSortedIntArrayFrom(a1, true)
 		ns1 := array1.SubSlice(1, 2)
 		gtest.Assert(len(ns1), 2)
 		gtest.Assert(ns1, []int{2, 3})
@@ -475,6 +507,10 @@ func TestSortedIntArray_SubSlice(t *testing.T) {
 		ns4 := array1.SubSlice(3, 1)
 		gtest.Assert(len(ns4), 1)
 		gtest.Assert(ns4, []int{4})
+		gtest.Assert(array1.SubSlice(-1, 1), []int{5})
+		gtest.Assert(array1.SubSlice(-9, 1), nil)
+		gtest.Assert(array1.SubSlice(1, -9), nil)
+		gtest.Assert(array2.SubSlice(1, 2), []int{2, 3})
 	})
 }
 
@@ -519,7 +555,6 @@ func TestSortedIntArray_SetUnique(t *testing.T) {
 		array1.SetUnique(true)
 		gtest.Assert(array1.Len(), 5)
 		gtest.Assert(array1, []int{1, 2, 3, 4, 5})
-
 	})
 }
 
@@ -531,7 +566,6 @@ func TestIntArray_SetArray(t *testing.T) {
 		array1.SetArray(a2)
 		gtest.Assert(array1.Len(), 2)
 		gtest.Assert(array1, []int{6, 7})
-
 	})
 }
 
@@ -621,3 +655,171 @@ func TestIntArray_Remove(t *testing.T) {
 		gtest.Assert(array1.Len(), 2)
 	})
 }
+
+func TestIntArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []int{1, 2, 3, 4}
+		a1 := garray.NewIntArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []int) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = 6
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains(6), true)
+	})
+}
+
+func TestIntArray_SortFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []int{1, 4, 3, 2}
+		a1 := garray.NewIntArrayFrom(s1)
+		func1 := func(v1, v2 int) bool {
+			return v1 < v2
+		}
+		a11 := a1.SortFunc(func1)
+		gtest.Assert(a11, []int{1, 2, 3, 4})
+
+	})
+}
+
+func TestIntArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []int{1, 2, 3, 4}
+		a1 := garray.NewIntArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 1)
+		//go1
+		go a1.RLockFunc(func(n1 []int) { //读锁
+			time.Sleep(2 * time.Second) //暂停1秒
+			n1[2] = 6
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候，并没有阻塞。
+		gtest.Assert(a1.Contains(6), true)
+	})
+}
+
+func TestSortedIntArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []int{1, 2, 3, 4}
+		a1 := garray.NewSortedIntArrayFrom(s1)
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []int) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = 6
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains(6), true)
+	})
+}
+
+func TestSortedIntArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []int{1, 2, 3, 4}
+		a1 := garray.NewSortedIntArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 1)
+		//go1
+		go a1.RLockFunc(func(n1 []int) { //读锁
+			time.Sleep(2 * time.Second) //暂停1秒
+			n1[2] = 6
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候，并没有阻塞。
+		gtest.Assert(a1.Contains(6), true)
+	})
+}
+
+func TestSortedIntArray_Merge(t *testing.T) {
+	gtest.Case(t, func() {
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+		i0 := []int{1, 2, 3, 4}
+		s2 := []string{"e", "f"}
+		i1 := garray.NewIntArrayFrom([]int{1, 2, 3})
+		i2 := garray.NewArrayFrom([]interface{}{3})
+		s3 := garray.NewStringArrayFrom([]string{"g", "h"})
+		s4 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+		s5 := garray.NewSortedStringArrayFrom(s2)
+		s6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+		a1 := garray.NewSortedIntArrayFrom(i0)
+
+		gtest.Assert(a1.Merge(s2).Len(), 6)
+		gtest.Assert(a1.Merge(i1).Len(), 9)
+		gtest.Assert(a1.Merge(i2).Len(), 10)
+		gtest.Assert(a1.Merge(s3).Len(), 12)
+		gtest.Assert(a1.Merge(s4).Len(), 14)
+		gtest.Assert(a1.Merge(s5).Len(), 16)
+		gtest.Assert(a1.Merge(s6).Len(), 19)
+	})
+}
diff --git a/g/container/garray/garray_z_unit_interface_test.go b/g/container/garray/garray_z_unit_interface_test.go
index 90ed36d6b..d4671f356 100644
--- a/g/container/garray/garray_z_unit_interface_test.go
+++ b/g/container/garray/garray_z_unit_interface_test.go
@@ -14,28 +14,36 @@ import (
 	"github.com/gogf/gf/g/util/gconv"
 	"strings"
 	"testing"
+	"time"
 )
 
 func Test_Array_Basic(t *testing.T) {
 	gtest.Case(t, func() {
 		expect := []interface{}{0, 1, 2, 3}
 		array := garray.NewArrayFrom(expect)
+		array2 := garray.NewArrayFrom(expect)
+		array3 := garray.NewArrayFrom([]interface{}{})
 		gtest.Assert(array.Slice(), expect)
 		array.Set(0, 100)
 		gtest.Assert(array.Get(0), 100)
 		gtest.Assert(array.Get(1), 1)
 		gtest.Assert(array.Search(100), 0)
+		gtest.Assert(array3.Search(100), -1)
 		gtest.Assert(array.Contains(100), true)
 		gtest.Assert(array.Remove(0), 100)
+
+		gtest.Assert(array2.Remove(3), 3)
+		gtest.Assert(array2.Remove(1), 1)
+
 		gtest.Assert(array.Contains(100), false)
 		array.Append(4)
 		gtest.Assert(array.Len(), 4)
 		array.InsertBefore(0, 100)
 		array.InsertAfter(0, 200)
-		gtest.Assert(array.Slice(), []interface{}{100, 200, 1, 2, 3, 4})
+		gtest.Assert(array.Slice(), []interface{}{100, 200, 2, 2, 3, 4})
 		array.InsertBefore(5, 300)
 		array.InsertAfter(6, 400)
-		gtest.Assert(array.Slice(), []interface{}{100, 200, 1, 2, 3, 300, 4, 400})
+		gtest.Assert(array.Slice(), []interface{}{100, 200, 2, 2, 3, 300, 4, 400})
 		gtest.Assert(array.Clear().Len(), 0)
 	})
 }
@@ -111,20 +119,48 @@ func TestArray_Range(t *testing.T) {
 	gtest.Case(t, func() {
 		value1 := []interface{}{0, 1, 2, 3, 4, 5, 6}
 		array1 := garray.NewArrayFrom(value1)
+		array2 := garray.NewArrayFrom(value1, true)
 		gtest.Assert(array1.Range(0, 1), []interface{}{0})
 		gtest.Assert(array1.Range(1, 2), []interface{}{1})
 		gtest.Assert(array1.Range(0, 2), []interface{}{0, 1})
 		gtest.Assert(array1.Range(-1, 10), value1)
+		gtest.Assert(array1.Range(10, 2), nil)
+		gtest.Assert(array2.Range(1, 3), []interface{}{1, 2})
 	})
 }
 
 func TestArray_Merge(t *testing.T) {
 	gtest.Case(t, func() {
-		a1 := []interface{}{0, 1, 2, 3}
-		a2 := []interface{}{4, 5, 6, 7}
-		array1 := garray.NewArrayFrom(a1)
-		array2 := garray.NewArrayFrom(a2)
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+
+		i1 := []interface{}{0, 1, 2, 3}
+		i2 := []interface{}{4, 5, 6, 7}
+		array1 := garray.NewArrayFrom(i1)
+		array2 := garray.NewArrayFrom(i2)
 		gtest.Assert(array1.Merge(array2).Slice(), []interface{}{0, 1, 2, 3, 4, 5, 6, 7})
+
+		//s1 := []string{"a", "b", "c", "d"}
+		s2 := []string{"e", "f"}
+		i3 := garray.NewIntArrayFrom([]int{1, 2, 3})
+		i4 := garray.NewArrayFrom([]interface{}{3})
+		s3 := garray.NewStringArrayFrom([]string{"g", "h"})
+		s4 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+		s5 := garray.NewSortedStringArrayFrom(s2)
+		s6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+		a1 := garray.NewArrayFrom(i1)
+
+		gtest.Assert(a1.Merge(s2).Len(), 6)
+		gtest.Assert(a1.Merge(i3).Len(), 9)
+		gtest.Assert(a1.Merge(i4).Len(), 10)
+		gtest.Assert(a1.Merge(s3).Len(), 12)
+		gtest.Assert(a1.Merge(s4).Len(), 14)
+		gtest.Assert(a1.Merge(s5).Len(), 16)
+		gtest.Assert(a1.Merge(s6).Len(), 19)
 	})
 }
 
@@ -133,9 +169,10 @@ func TestArray_Fill(t *testing.T) {
 		a1 := []interface{}{0}
 		a2 := []interface{}{0}
 		array1 := garray.NewArrayFrom(a1)
-		array2 := garray.NewArrayFrom(a2)
+		array2 := garray.NewArrayFrom(a2, true)
 		gtest.Assert(array1.Fill(1, 2, 100).Slice(), []interface{}{0, 100, 100})
 		gtest.Assert(array2.Fill(0, 2, 100).Slice(), []interface{}{100, 100})
+		gtest.Assert(array2.Fill(-1, 2, 100).Slice(), []interface{}{100, 100})
 	})
 }
 
@@ -148,6 +185,7 @@ func TestArray_Chunk(t *testing.T) {
 		gtest.Assert(chunks[0], []interface{}{1, 2})
 		gtest.Assert(chunks[1], []interface{}{3, 4})
 		gtest.Assert(chunks[2], []interface{}{5})
+		gtest.Assert(array1.Chunk(0), nil)
 	})
 }
 
@@ -165,9 +203,15 @@ func TestArray_SubSlice(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []interface{}{0, 1, 2, 3, 4, 5, 6}
 		array1 := garray.NewArrayFrom(a1)
+		array2 := garray.NewArrayFrom(a1, true)
 		gtest.Assert(array1.SubSlice(0, 2), []interface{}{0, 1})
 		gtest.Assert(array1.SubSlice(2, 2), []interface{}{2, 3})
 		gtest.Assert(array1.SubSlice(5, 8), []interface{}{5, 6})
+		gtest.Assert(array1.SubSlice(9, 1), nil)
+		gtest.Assert(array1.SubSlice(-2, 2), []interface{}{5, 6})
+		gtest.Assert(array1.SubSlice(-9, 2), nil)
+		gtest.Assert(array1.SubSlice(1, -2), nil)
+		gtest.Assert(array2.SubSlice(0, 2), []interface{}{0, 1})
 	})
 }
 
@@ -179,6 +223,14 @@ func TestArray_Rand(t *testing.T) {
 		gtest.Assert(len(array1.Rands(10)), 7)
 		gtest.AssertIN(array1.Rands(1)[0], a1)
 	})
+
+	gtest.Case(t, func() {
+		s1 := []interface{}{"a", "b", "c", "d"}
+		a1 := garray.NewArrayFrom(s1)
+		i1 := a1.Rand()
+		gtest.Assert(a1.Contains(i1), true)
+		gtest.Assert(a1.Len(), 4)
+	})
 }
 
 func TestArray_Shuffle(t *testing.T) {
@@ -496,6 +548,7 @@ func TestSortedArray_Range(t *testing.T) {
 			return strings.Compare(gconv.String(v1), gconv.String(v2))
 		}
 		array1 := garray.NewSortedArrayFrom(a1, func1)
+		array2 := garray.NewSortedArrayFrom(a1, func1, true)
 		i1 := array1.Range(2, 5)
 		gtest.Assert(i1, []interface{}{"c", "d", "e"})
 		gtest.Assert(array1.Len(), 6)
@@ -509,6 +562,8 @@ func TestSortedArray_Range(t *testing.T) {
 		gtest.Assert(len(i2), 2)
 		gtest.Assert(i2, []interface{}{"e", "f"})
 
+		gtest.Assert(array2.Range(1, 3), []interface{}{"b", "c"})
+
 	})
 }
 
@@ -587,6 +642,7 @@ func TestSortedArray_SubSlice(t *testing.T) {
 			return strings.Compare(gconv.String(v1), gconv.String(v2))
 		}
 		array1 := garray.NewSortedArrayFrom(a1, func1)
+		array2 := garray.NewSortedArrayFrom(a1, func1, true)
 		i1 := array1.SubSlice(2, 3)
 		gtest.Assert(len(i1), 3)
 		gtest.Assert(i1, []interface{}{"c", "d", "e"})
@@ -598,6 +654,13 @@ func TestSortedArray_SubSlice(t *testing.T) {
 		i1 = array1.SubSlice(7, 2)
 		gtest.Assert(len(i1), 0)
 
+		s1 := array1.SubSlice(1, -2)
+		gtest.Assert(s1, nil)
+
+		s1 = array1.SubSlice(-9, 2)
+		gtest.Assert(s1, nil)
+		gtest.Assert(array2.SubSlice(1, 3), []interface{}{"b", "c", "d"})
+
 	})
 }
 
@@ -676,3 +739,168 @@ func TestSortedArray_SetUnique(t *testing.T) {
 		gtest.Assert(array1, []interface{}{"a", "c", "d"})
 	})
 }
+
+func TestSortedArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		func1 := func(v1, v2 interface{}) int {
+			return strings.Compare(gconv.String(v1), gconv.String(v2))
+		}
+		s1 := []interface{}{"a", "b", "c", "d"}
+		a1 := garray.NewSortedArrayFrom(s1, func1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []interface{}) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestSortedArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		func1 := func(v1, v2 interface{}) int {
+			return strings.Compare(gconv.String(v1), gconv.String(v2))
+		}
+		s1 := []interface{}{"a", "b", "c", "d"}
+		a1 := garray.NewSortedArrayFrom(s1, func1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.RLockFunc(func(n1 []interface{}) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候不会被阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestSortedArray_Merge(t *testing.T) {
+	gtest.Case(t, func() {
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+
+		s1 := []interface{}{"a", "b", "c", "d"}
+		s2 := []string{"e", "f"}
+		i1 := garray.NewIntArrayFrom([]int{1, 2, 3})
+		i2 := garray.NewArrayFrom([]interface{}{3})
+		s3 := garray.NewStringArrayFrom([]string{"g", "h"})
+		s4 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+		s5 := garray.NewSortedStringArrayFrom(s2)
+		s6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+
+		a1 := garray.NewSortedArrayFrom(s1, func1)
+
+		gtest.Assert(a1.Merge(s2).Len(), 6)
+		gtest.Assert(a1.Merge(i1).Len(), 9)
+		gtest.Assert(a1.Merge(i2).Len(), 10)
+		gtest.Assert(a1.Merge(s3).Len(), 12)
+		gtest.Assert(a1.Merge(s4).Len(), 14)
+		gtest.Assert(a1.Merge(s5).Len(), 16)
+		gtest.Assert(a1.Merge(s6).Len(), 19)
+
+	})
+}
+
+func TestArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []interface{}{"a", "b", "c", "d"}
+		a1 := garray.NewArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []interface{}) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []interface{}{"a", "b", "c", "d"}
+		a1 := garray.NewArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 1)
+		//go1
+		go a1.RLockFunc(func(n1 []interface{}) { //读锁
+			time.Sleep(2 * time.Second) //暂停1秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候，并没有阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
diff --git a/g/container/garray/garray_z_unit_string_test.go b/g/container/garray/garray_z_unit_string_test.go
index b7c912e63..4e8e8fd6e 100644
--- a/g/container/garray/garray_z_unit_string_test.go
+++ b/g/container/garray/garray_z_unit_string_test.go
@@ -14,12 +14,15 @@ import (
 	"github.com/gogf/gf/g/util/gconv"
 	"strings"
 	"testing"
+	"time"
 )
 
 func Test_StringArray_Basic(t *testing.T) {
 	gtest.Case(t, func() {
 		expect := []string{"0", "1", "2", "3"}
 		array := garray.NewStringArrayFrom(expect)
+		array2 := garray.NewStringArrayFrom(expect, true)
+		array3 := garray.NewStringArrayFrom([]string{})
 		gtest.Assert(array.Slice(), expect)
 		array.Set(0, "100")
 		gtest.Assert(array.Get(0), 100)
@@ -37,6 +40,8 @@ func Test_StringArray_Basic(t *testing.T) {
 		array.InsertAfter(6, "400")
 		gtest.Assert(array.Slice(), []string{"100", "200", "1", "2", "3", "300", "4", "400"})
 		gtest.Assert(array.Clear().Len(), 0)
+		gtest.Assert(array2.Slice(), expect)
+		gtest.Assert(array3.Search("100"), -1)
 	})
 }
 
@@ -99,20 +104,48 @@ func TestString_Range(t *testing.T) {
 	gtest.Case(t, func() {
 		value1 := []string{"0", "1", "2", "3", "4", "5", "6"}
 		array1 := garray.NewStringArrayFrom(value1)
+		array2 := garray.NewStringArrayFrom(value1, true)
 		gtest.Assert(array1.Range(0, 1), []interface{}{"0"})
 		gtest.Assert(array1.Range(1, 2), []interface{}{"1"})
 		gtest.Assert(array1.Range(0, 2), []interface{}{"0", "1"})
 		gtest.Assert(array1.Range(-1, 10), value1)
+		gtest.Assert(array1.Range(10, 1), nil)
+		gtest.Assert(array2.Range(0, 1), []interface{}{"0"})
 	})
 }
 
 func TestStringArray_Merge(t *testing.T) {
 	gtest.Case(t, func() {
-		a1 := []string{"0", "1", "2", "3"}
-		a2 := []string{"4", "5", "6", "7"}
-		array1 := garray.NewStringArrayFrom(a1)
-		array2 := garray.NewStringArrayFrom(a2)
+		a11 := []string{"0", "1", "2", "3"}
+		a21 := []string{"4", "5", "6", "7"}
+		array1 := garray.NewStringArrayFrom(a11)
+		array2 := garray.NewStringArrayFrom(a21)
 		gtest.Assert(array1.Merge(array2).Slice(), []string{"0", "1", "2", "3", "4", "5", "6", "7"})
+
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+
+		s1 := []string{"a", "b", "c", "d"}
+		s2 := []string{"e", "f"}
+		i1 := garray.NewIntArrayFrom([]int{1, 2, 3})
+		i2 := garray.NewArrayFrom([]interface{}{3})
+		s3 := garray.NewStringArrayFrom([]string{"g", "h"})
+		s4 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+		s5 := garray.NewSortedStringArrayFrom(s2)
+		s6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+		a1 := garray.NewStringArrayFrom(s1)
+
+		gtest.Assert(a1.Merge(s2).Len(), 6)
+		gtest.Assert(a1.Merge(i1).Len(), 9)
+		gtest.Assert(a1.Merge(i2).Len(), 10)
+		gtest.Assert(a1.Merge(s3).Len(), 12)
+		gtest.Assert(a1.Merge(s4).Len(), 14)
+		gtest.Assert(a1.Merge(s5).Len(), 16)
+		gtest.Assert(a1.Merge(s6).Len(), 19)
 	})
 }
 
@@ -139,7 +172,6 @@ func TestStringArray_Chunk(t *testing.T) {
 		gtest.Assert(chunks[1], []string{"3", "4"})
 		gtest.Assert(chunks[2], []string{"5"})
 		gtest.Assert(len(array1.Chunk(0)), 0)
-
 	})
 }
 
@@ -157,9 +189,15 @@ func TestStringArray_SubSlice(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []string{"0", "1", "2", "3", "4", "5", "6"}
 		array1 := garray.NewStringArrayFrom(a1)
+		array2 := garray.NewStringArrayFrom(a1, true)
 		gtest.Assert(array1.SubSlice(0, 2), []string{"0", "1"})
 		gtest.Assert(array1.SubSlice(2, 2), []string{"2", "3"})
 		gtest.Assert(array1.SubSlice(5, 8), []string{"5", "6"})
+		gtest.Assert(array1.SubSlice(8, 2), nil)
+		gtest.Assert(array1.SubSlice(1, -2), nil)
+		gtest.Assert(array1.SubSlice(-5, 2), []string{"2", "3"})
+		gtest.Assert(array1.SubSlice(-10, 1), nil)
+		gtest.Assert(array2.SubSlice(0, 2), []string{"0", "1"})
 	})
 }
 
@@ -172,7 +210,6 @@ func TestStringArray_Rand(t *testing.T) {
 		gtest.AssertIN(array1.Rands(1)[0], a1)
 		gtest.Assert(len(array1.Rand()), 1)
 		gtest.AssertIN(array1.Rand(), a1)
-
 	})
 }
 
@@ -181,10 +218,9 @@ func TestStringArray_PopRands(t *testing.T) {
 		a1 := []string{"a", "b", "c", "d", "e", "f", "g"}
 		a2 := []string{"1", "2", "3", "4", "5", "6", "7"}
 		array1 := garray.NewStringArrayFrom(a1)
-		//todo gtest.AssertIN(array1.PopRands(1),a1)
 		gtest.AssertIN(array1.PopRands(1), strings.Join(a1, ","))
 		gtest.AssertNI(array1.PopRands(1), strings.Join(a2, ","))
-
+		gtest.Assert(len(array1.PopRands(10)), 5)
 	})
 }
 
@@ -275,26 +311,6 @@ func TestStringArray_Sum(t *testing.T) {
 	})
 }
 
-//func TestStringArray_SortFunc(t *testing.T) {
-//    gtest.Case(t, func() {
-//        a1 := []string{"0","1","2","3","4","5","6"}
-//        //a2 := []string{"0","a","3","4","5","6"}
-//        array1 := garray.NewStringArrayFrom(a1)
-//
-//        lesss:=func(v1,v2 string)bool{
-//            if v1>v2{
-//                return true
-//            }
-//            return false
-//        }
-//        gtest.Assert(array1.Len(),7)
-//        gtest.Assert(lesss("1","2"),false)
-//        gtest.Assert(array1.SortFunc(lesss("1","2"))  ,false)
-//
-//
-//    })
-//}
-
 func TestStringArray_PopRand(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []string{"0", "1", "2", "3", "4", "5", "6"}
@@ -324,7 +340,6 @@ func TestStringArray_CountValues(t *testing.T) {
 		gtest.Assert(len(m1), 6)
 		gtest.Assert(m1["2"], 1)
 		gtest.Assert(m1["4"], 2)
-
 	})
 }
 
@@ -357,7 +372,6 @@ func TestSortedStringArray_SetArray(t *testing.T) {
 		gtest.Assert(array1.Contains("d"), false)
 		gtest.Assert(array1.Contains("b"), false)
 		gtest.Assert(array1.Contains("g"), true)
-
 	})
 }
 
@@ -367,7 +381,7 @@ func TestSortedStringArray_Sort(t *testing.T) {
 		array1 := garray.NewSortedStringArrayFrom(a1)
 
 		gtest.Assert(array1, []string{"a", "b", "c", "d"})
-		array1.Sort() //todo 这个SortedStringArray.sort这个方法没有必要，
+		array1.Sort()
 		gtest.Assert(array1.Len(), 4)
 		gtest.Assert(array1.Contains("c"), true)
 		gtest.Assert(array1, []string{"a", "b", "c", "d"})
@@ -380,7 +394,6 @@ func TestSortedStringArray_Get(t *testing.T) {
 		array1 := garray.NewSortedStringArrayFrom(a1)
 		gtest.Assert(array1.Get(2), "c")
 		gtest.Assert(array1.Get(0), "a")
-
 	})
 }
 
@@ -400,7 +413,6 @@ func TestSortedStringArray_Remove(t *testing.T) {
 		// 此时array1里的元素只剩下2个
 		gtest.Assert(array1.Remove(1), "d")
 		gtest.Assert(array1.Len(), 1)
-
 	})
 }
 
@@ -486,6 +498,7 @@ func TestSortedStringArray_Range(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []string{"e", "a", "d", "c", "b", "f", "g"}
 		array1 := garray.NewSortedStringArrayFrom(a1)
+		array2 := garray.NewSortedStringArrayFrom(a1, true)
 		s1 := array1.Range(2, 4)
 		gtest.Assert(len(s1), 2)
 		gtest.Assert(s1, []string{"c", "d"})
@@ -497,6 +510,11 @@ func TestSortedStringArray_Range(t *testing.T) {
 		s1 = array1.Range(4, 8)
 		gtest.Assert(len(s1), 3)
 		gtest.Assert(s1, []string{"e", "f", "g"})
+		gtest.Assert(array1.Range(10, 2), nil)
+
+		s2 := array2.Range(2, 4)
+		gtest.Assert(s2, []string{"c", "d"})
+
 	})
 }
 
@@ -528,7 +546,6 @@ func TestSortedStringArray_Clear(t *testing.T) {
 		array1 := garray.NewSortedStringArrayFrom(a1)
 		array1.Clear()
 		gtest.Assert(array1.Len(), 0)
-
 	})
 }
 
@@ -536,6 +553,7 @@ func TestSortedStringArray_SubSlice(t *testing.T) {
 	gtest.Case(t, func() {
 		a1 := []string{"e", "a", "d", "c", "b", "f", "g"}
 		array1 := garray.NewSortedStringArrayFrom(a1)
+		array2 := garray.NewSortedStringArrayFrom(a1, true)
 		s1 := array1.SubSlice(1, 3)
 		gtest.Assert(len(s1), 3)
 		gtest.Assert(s1, []string{"b", "c", "d"})
@@ -547,6 +565,16 @@ func TestSortedStringArray_SubSlice(t *testing.T) {
 		s3 := array1.SubSlice(10, 2)
 		gtest.Assert(len(s3), 0)
 
+		s3 = array1.SubSlice(-5, 2)
+		gtest.Assert(s3, []string{"c", "d"})
+
+		s3 = array1.SubSlice(-10, 2)
+		gtest.Assert(s3, nil)
+
+		s3 = array1.SubSlice(1, -2)
+		gtest.Assert(s3, nil)
+
+		gtest.Assert(array2.SubSlice(1, 3), []string{"b", "c", "d"})
 	})
 }
 
@@ -564,7 +592,6 @@ func TestSortedStringArray_Rand(t *testing.T) {
 		a1 := []string{"e", "a", "d"}
 		array1 := garray.NewSortedStringArrayFrom(a1)
 		gtest.AssertIN(array1.Rand(), []string{"e", "a", "d"})
-
 	})
 }
 
@@ -611,6 +638,7 @@ func TestSortedStringArray_Chunk(t *testing.T) {
 		gtest.Assert(len(array2), 3)
 		gtest.Assert(len(array2[0]), 2)
 		gtest.Assert(array2[1], []string{"c", "d"})
+		gtest.Assert(array1.Chunk(0), nil)
 	})
 }
 
@@ -634,6 +662,174 @@ func TestStringArray_Remove(t *testing.T) {
 		s1 = array1.Remove(3)
 		gtest.Assert(s1, "c")
 		gtest.Assert(array1.Len(), 3)
-
+	})
+}
+
+func TestStringArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []string{"a", "b", "c", "d"}
+		a1 := garray.NewStringArrayFrom(s1, true)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 1)
+		//go1
+		go a1.RLockFunc(func(n1 []string) { //读锁
+			time.Sleep(2 * time.Second) //暂停1秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候，并没有阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestSortedStringArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []string{"a", "b", "c", "d"}
+		a1 := garray.NewSortedStringArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []string) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestSortedStringArray_RLockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []string{"a", "b", "c", "d"}
+		a1 := garray.NewSortedStringArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 1)
+		//go1
+		go a1.RLockFunc(func(n1 []string) { //读锁
+			time.Sleep(2 * time.Second) //暂停1秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertLT(t2-t1, 20) //go1加的读锁，所go2读的时候，并没有阻塞。
+		gtest.Assert(a1.Contains("g"), true)
+	})
+}
+
+func TestSortedStringArray_Merge(t *testing.T) {
+	gtest.Case(t, func() {
+		func1 := func(v1, v2 interface{}) int {
+			if gconv.Int(v1) < gconv.Int(v2) {
+				return 0
+			}
+			return 1
+		}
+
+		s1 := []string{"a", "b", "c", "d"}
+		s2 := []string{"e", "f"}
+		i1 := garray.NewIntArrayFrom([]int{1, 2, 3})
+		i2 := garray.NewArrayFrom([]interface{}{3})
+		s3 := garray.NewStringArrayFrom([]string{"g", "h"})
+		s4 := garray.NewSortedArrayFrom([]interface{}{4, 5}, func1)
+		s5 := garray.NewSortedStringArrayFrom(s2)
+		s6 := garray.NewSortedIntArrayFrom([]int{1, 2, 3})
+		a1 := garray.NewSortedStringArrayFrom(s1)
+
+		gtest.Assert(a1.Merge(s2).Len(), 6)
+		gtest.Assert(a1.Merge(i1).Len(), 9)
+		gtest.Assert(a1.Merge(i2).Len(), 10)
+		gtest.Assert(a1.Merge(s3).Len(), 12)
+		gtest.Assert(a1.Merge(s4).Len(), 14)
+		gtest.Assert(a1.Merge(s5).Len(), 16)
+		gtest.Assert(a1.Merge(s6).Len(), 19)
+	})
+}
+
+func TestStringArray_SortFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []string{"a", "d", "c", "b"}
+		a1 := garray.NewStringArrayFrom(s1)
+		func1 := func(v1, v2 string) bool {
+			return v1 < v2
+		}
+		a11 := a1.SortFunc(func1)
+		gtest.Assert(a11, []string{"a", "b", "c", "d"})
+	})
+}
+
+func TestStringArray_LockFunc(t *testing.T) {
+	gtest.Case(t, func() {
+		s1 := []string{"a", "b", "c", "d"}
+		a1 := garray.NewStringArrayFrom(s1)
+
+		ch1 := make(chan int64, 3)
+		ch2 := make(chan int64, 3)
+		//go1
+		go a1.LockFunc(func(n1 []string) { //读写锁
+			time.Sleep(2 * time.Second) //暂停2秒
+			n1[2] = "g"
+			ch2 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		})
+
+		//go2
+		go func() {
+			time.Sleep(100 * time.Millisecond) //故意暂停0.01秒,等go1执行锁后，再开始执行.
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+			a1.Len()
+			ch1 <- gconv.Int64(time.Now().UnixNano() / 1000 / 1000)
+		}()
+
+		t1 := <-ch1
+		t2 := <-ch1
+		<-ch2 //等待go1完成
+
+		// 防止ci抖动,以豪秒为单位
+		gtest.AssertGT(t2-t1, 20) //go1加的读写互斥锁，所go2读的时候被阻塞。
+		gtest.Assert(a1.Contains("g"), true)
 	})
 }
diff --git a/g/container/gpool/gpool_z_unit_test.go b/g/container/gpool/gpool_z_unit_test.go
index 32577a25c..19bea8843 100644
--- a/g/container/gpool/gpool_z_unit_test.go
+++ b/g/container/gpool/gpool_z_unit_test.go
@@ -1,7 +1,14 @@
+// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
 package gpool_test
 
 import (
 	"errors"
+	"github.com/gogf/gf/g"
 	"testing"
 	"time"
 
@@ -30,7 +37,7 @@ func Test_Gpool(t *testing.T) {
 		//test won't be timeout
 		v1, err1 := p1.Get()
 		gtest.Assert(err1, nil)
-		gtest.Assert(v1, 1)
+		gtest.AssertIN(v1, g.Slice{1, 2})
 		//test clear
 		p1.Clear()
 		gtest.Assert(p1.Size(), 0)
@@ -43,13 +50,12 @@ func Test_Gpool(t *testing.T) {
 		p1.Put(4)
 		v1, err1 = p1.Get()
 		gtest.Assert(err1, nil)
-		gtest.Assert(v1, 3)
+		gtest.AssertIN(v1, g.Slice{3, 4})
 		//test close
 		p1.Close()
 		v1, err1 = p1.Get()
 		gtest.Assert(err1, nil)
 		gtest.Assert(v1, "hello")
-
 	})
 
 	gtest.Case(t, func() {
diff --git a/g/container/gvar/gvar.go b/g/container/gvar/gvar.go
index 05b3098e8..bbf3543d9 100644
--- a/g/container/gvar/gvar.go
+++ b/g/container/gvar/gvar.go
@@ -58,33 +58,6 @@ func (v *Var) Interface() interface{} {
 	return v.Val()
 }
 
-// Time converts and returns <v> as time.Time.
-// The parameter <format> specifies the format of the time string using gtime,
-// eg: Y-m-d H:i:s.
-func (v *Var) Time(format ...string) time.Time {
-	return gconv.Time(v.Val(), format...)
-}
-
-// Duration converts and returns <v> as time.Duration.
-// If value of <v> is string, then it uses time.ParseDuration for conversion.
-func (v *Var) Duration() time.Duration {
-	return gconv.Duration(v.Val())
-}
-
-// GTime converts and returns <v> as *gtime.Time.
-// The parameter <format> specifies the format of the time string using gtime,
-// eg: Y-m-d H:i:s.
-func (v *Var) GTime(format ...string) *gtime.Time {
-	return gconv.GTime(v.Val(), format...)
-}
-
-// Struct maps value of <v> to <objPointer>.
-// The parameter <objPointer> should be a pointer to a struct instance.
-// The parameter <mapping> is used to specify the key-to-attribute mapping rules.
-func (v *Var) Struct(pointer interface{}, mapping ...map[string]string) error {
-	return gconv.Struct(v.Val(), pointer, mapping...)
-}
-
 // IsNil checks whether <v> is nil.
 func (v *Var) IsNil() bool {
 	return v.Val() == nil
@@ -184,3 +157,57 @@ func (v *Var) Strings() []string {
 func (v *Var) Interfaces() []interface{} {
 	return gconv.Interfaces(v.Val())
 }
+
+// Time converts and returns <v> as time.Time.
+// The parameter <format> specifies the format of the time string using gtime,
+// eg: Y-m-d H:i:s.
+func (v *Var) Time(format ...string) time.Time {
+	return gconv.Time(v.Val(), format...)
+}
+
+// Duration converts and returns <v> as time.Duration.
+// If value of <v> is string, then it uses time.ParseDuration for conversion.
+func (v *Var) Duration() time.Duration {
+	return gconv.Duration(v.Val())
+}
+
+// GTime converts and returns <v> as *gtime.Time.
+// The parameter <format> specifies the format of the time string using gtime,
+// eg: Y-m-d H:i:s.
+func (v *Var) GTime(format ...string) *gtime.Time {
+	return gconv.GTime(v.Val(), format...)
+}
+
+// Map converts <v> to map[string]interface{}.
+func (v *Var) Map(tags ...string) map[string]interface{} {
+	return gconv.Map(v.Val(), tags...)
+}
+
+// MapDeep converts <v> to map[string]interface{} recursively.
+func (v *Var) MapDeep(tags ...string) map[string]interface{} {
+	return gconv.MapDeep(v.Val(), tags...)
+}
+
+// Struct maps value of <v> to <pointer>.
+// The parameter <pointer> should be a pointer to a struct instance.
+// The parameter <mapping> is used to specify the key-to-attribute mapping rules.
+func (v *Var) Struct(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.Struct(v.Val(), pointer, mapping...)
+}
+
+// Struct maps value of <v> to <pointer> recursively.
+// The parameter <pointer> should be a pointer to a struct instance.
+// The parameter <mapping> is used to specify the key-to-attribute mapping rules.
+func (v *Var) StructDeep(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.StructDeep(v.Val(), pointer, mapping...)
+}
+
+// Structs converts <v> to given struct slice.
+func (v *Var) Structs(pointer interface{}, mapping ...map[string]string) (err error) {
+	return gconv.Structs(v.Val(), pointer, mapping...)
+}
+
+// StructsDeep converts <v> to given struct slice recursively.
+func (v *Var) StructsDeep(pointer interface{}, mapping ...map[string]string) (err error) {
+	return gconv.StructsDeep(v.Val(), pointer, mapping...)
+}
diff --git a/g/database/gdb/gdb_model.go b/g/database/gdb/gdb_model.go
index b9168016f..ef61c8041 100644
--- a/g/database/gdb/gdb_model.go
+++ b/g/database/gdb/gdb_model.go
@@ -511,21 +511,18 @@ func (md *Model) Structs(objPointerSlice interface{}) error {
 // 链式操作，将结果转换为指定的struct/*struct/[]struct/[]*struct,
 // 参数应该为指针类型，否则返回失败。
 // 该方法自动识别参数类型，调用Struct/Structs方法。
-func (md *Model) Scan(objPointer interface{}) error {
-	t := reflect.TypeOf(objPointer)
+func (md *Model) Scan(pointer interface{}) error {
+	t := reflect.TypeOf(pointer)
 	k := t.Kind()
 	if k != reflect.Ptr {
 		return fmt.Errorf("params should be type of pointer, but got: %v", k)
 	}
-	k = t.Elem().Kind()
-	switch k {
+	switch t.Elem().Kind() {
 	case reflect.Array:
 	case reflect.Slice:
-		return md.Structs(objPointer)
-	case reflect.Struct:
-		return md.Struct(objPointer)
+		return md.Structs(pointer)
 	default:
-		return fmt.Errorf("element type should be type of struct/slice, unsupported: %v", k)
+		return md.Struct(pointer)
 	}
 	return nil
 }
diff --git a/g/database/gdb/gdb_type_result.go b/g/database/gdb/gdb_type_result.go
index 7a67d981e..91854d043 100644
--- a/g/database/gdb/gdb_type_result.go
+++ b/g/database/gdb/gdb_type_result.go
@@ -102,14 +102,14 @@ func (r Result) ToUintRecord(key string) map[uint]Record {
 }
 
 // 将结果列表转换为指定对象的slice。
-func (r Result) ToStructs(objPointerSlice interface{}) (err error) {
+func (r Result) ToStructs(pointer interface{}) (err error) {
 	l := len(r)
 	if l == 0 {
 		return sql.ErrNoRows
 	}
-	t := reflect.TypeOf(objPointerSlice)
+	t := reflect.TypeOf(pointer)
 	if t.Kind() != reflect.Ptr {
-		return fmt.Errorf("params should be type of pointer, but got: %v", t.Kind())
+		return fmt.Errorf("pointer should be type of pointer, but got: %v", t.Kind())
 	}
 	array := reflect.MakeSlice(t.Elem(), l, l)
 	itemType := array.Index(0).Type()
@@ -128,6 +128,6 @@ func (r Result) ToStructs(objPointerSlice interface{}) (err error) {
 			array.Index(i).Set(e)
 		}
 	}
-	reflect.ValueOf(objPointerSlice).Elem().Set(array)
+	reflect.ValueOf(pointer).Elem().Set(array)
 	return nil
 }
diff --git a/g/database/gdb/gdb_unit_model_test.go b/g/database/gdb/gdb_unit_model_test.go
index 7c09bccf7..7b47901da 100644
--- a/g/database/gdb/gdb_unit_model_test.go
+++ b/g/database/gdb/gdb_unit_model_test.go
@@ -358,6 +358,40 @@ func TestModel_Struct(t *testing.T) {
 		gtest.Assert(user.NickName, "T111")
 		gtest.Assert(user.CreateTime.String(), "2018-10-10 00:01:10")
 	})
+	// Auto creating struct object.
+	gtest.Case(t, func() {
+		type User struct {
+			Id         int
+			Passport   string
+			Password   string
+			NickName   string
+			CreateTime *gtime.Time
+		}
+		user := (*User)(nil)
+		err := db.Table("user").Where("id=1").Struct(&user)
+		if err != nil {
+			gtest.Fatal(err)
+		}
+		gtest.Assert(user.NickName, "T111")
+		gtest.Assert(user.CreateTime.String(), "2018-10-10 00:01:10")
+	})
+	// Just using Scan.
+	gtest.Case(t, func() {
+		type User struct {
+			Id         int
+			Passport   string
+			Password   string
+			NickName   string
+			CreateTime *gtime.Time
+		}
+		user := (*User)(nil)
+		err := db.Table("user").Where("id=1").Scan(&user)
+		if err != nil {
+			gtest.Fatal(err)
+		}
+		gtest.Assert(user.NickName, "T111")
+		gtest.Assert(user.CreateTime.String(), "2018-10-10 00:01:10")
+	})
 
 	gtest.Case(t, func() {
 		type User struct {
@@ -396,6 +430,7 @@ func TestModel_Structs(t *testing.T) {
 		gtest.Assert(users[2].NickName, "T3")
 		gtest.Assert(users[0].CreateTime.String(), "2018-10-10 00:01:10")
 	})
+	// Auto create struct slice.
 	gtest.Case(t, func() {
 		type User struct {
 			Id         int
@@ -418,7 +453,29 @@ func TestModel_Structs(t *testing.T) {
 		gtest.Assert(users[2].NickName, "T3")
 		gtest.Assert(users[0].CreateTime.String(), "2018-10-10 00:01:10")
 	})
-
+	// Just using Scan.
+	gtest.Case(t, func() {
+		type User struct {
+			Id         int
+			Passport   string
+			Password   string
+			NickName   string
+			CreateTime *gtime.Time
+		}
+		var users []*User
+		err := db.Table("user").OrderBy("id asc").Scan(&users)
+		if err != nil {
+			gtest.Fatal(err)
+		}
+		gtest.Assert(len(users), 3)
+		gtest.Assert(users[0].Id, 1)
+		gtest.Assert(users[1].Id, 2)
+		gtest.Assert(users[2].Id, 3)
+		gtest.Assert(users[0].NickName, "T111")
+		gtest.Assert(users[1].NickName, "T2")
+		gtest.Assert(users[2].NickName, "T3")
+		gtest.Assert(users[0].CreateTime.String(), "2018-10-10 00:01:10")
+	})
 	gtest.Case(t, func() {
 		type User struct {
 			Id         int
@@ -595,6 +652,21 @@ func TestModel_Where(t *testing.T) {
 		gtest.Assert(err, nil)
 		gtest.Assert(result["id"].Int(), 3)
 	})
+	// slice
+	gtest.Case(t, func() {
+		result, err := db.Table("user").Where("id=? AND nickname=?", g.Slice{3, "T3"}...).One()
+		if err != nil {
+			gtest.Fatal(err)
+		}
+		gtest.Assert(result["id"].Int(), 3)
+	})
+	gtest.Case(t, func() {
+		result, err := db.Table("user").Where("passport like ? and nickname like ?", g.Slice{"t3", "T3"}...).One()
+		if err != nil {
+			gtest.Fatal(err)
+		}
+		gtest.Assert(result["id"].Int(), 3)
+	})
 	// map
 	gtest.Case(t, func() {
 		result, err := db.Table("user").Where(g.Map{"id": 3, "nickname": "T3"}).One()
diff --git a/g/encoding/gbase64/gbase64.go b/g/encoding/gbase64/gbase64.go
index e19733002..0a01680ff 100644
--- a/g/encoding/gbase64/gbase64.go
+++ b/g/encoding/gbase64/gbase64.go
@@ -22,10 +22,7 @@ func Encode(src []byte) []byte {
 func Decode(dst []byte) ([]byte, error) {
 	src := make([]byte, base64.StdEncoding.DecodedLen(len(dst)))
 	n, err := base64.StdEncoding.Decode(src, dst)
-	if err != nil {
-		return nil, err
-	}
-	return src[:n], nil
+	return src[:n], err
 }
 
 // EncodeString encodes bytes with BASE64 algorithm.
diff --git a/g/encoding/gjson/gjson_api.go b/g/encoding/gjson/gjson_api.go
index b83316d30..a03a50f60 100644
--- a/g/encoding/gjson/gjson_api.go
+++ b/g/encoding/gjson/gjson_api.go
@@ -266,11 +266,32 @@ func (j *Json) GetToVar(pattern string, pointer interface{}) error {
 	return nil
 }
 
-// GetToStruct gets the value by specified <pattern>,
-// and converts it to specified object <objPointer>.
-// The <objPointer> should be the pointer to an object.
-func (j *Json) GetToStruct(pattern string, pointer interface{}) error {
-	return gconv.Struct(j.Get(pattern), pointer)
+// GetStruct gets the value by specified <pattern>,
+// and converts it to specified object <pointer>.
+// The <pointer> should be the pointer to an object.
+func (j *Json) GetStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return gconv.Struct(j.Get(pattern), pointer, mapping...)
+}
+
+// GetStructDeep does GetStruct recursively.
+func (j *Json) GetStructDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return gconv.StructDeep(j.Get(pattern), pointer, mapping...)
+}
+
+// GetStructs converts any slice to given struct slice.
+func (j *Json) GetStructs(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return gconv.Structs(j.Get(pattern), pointer, mapping...)
+}
+
+// GetStructsDeep converts any slice to given struct slice recursively.
+func (j *Json) GetStructsDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return gconv.StructsDeep(j.Get(pattern), pointer, mapping...)
+}
+
+// GetToStruct is alias of GetStruct.
+// Deprecated.
+func (j *Json) GetToStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return j.GetStruct(pattern, pointer, mapping...)
 }
 
 // ToMap converts current Json object to map[string]interface{}.
@@ -290,7 +311,7 @@ func (j *Json) ToArray() []interface{} {
 }
 
 // ToStruct converts current Json object to specified object.
-// The <objPointer> should be a pointer type.
+// The <pointer> should be a pointer type.
 func (j *Json) ToStruct(pointer interface{}) error {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
diff --git a/g/encoding/gparser/gparser_api.go b/g/encoding/gparser/gparser_api.go
index 659b2c7dc..2b5261a09 100644
--- a/g/encoding/gparser/gparser_api.go
+++ b/g/encoding/gparser/gparser_api.go
@@ -145,11 +145,32 @@ func (p *Parser) GetToVar(pattern string, pointer interface{}) error {
 	return p.json.GetToVar(pattern, pointer)
 }
 
-// GetToStruct gets the value by specified <pattern>,
+// GetStruct gets the value by specified <pattern>,
 // and converts it to specified object <pointer>.
-// The <pointer> should be the pointer to a struct.
-func (p *Parser) GetToStruct(pattern string, pointer interface{}) error {
-	return p.json.GetToStruct(pattern, pointer)
+// The <pointer> should be the pointer to an object.
+func (p *Parser) GetStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return p.json.GetStruct(pattern, pointer, mapping...)
+}
+
+// GetStructDeep does GetStruct recursively.
+func (p *Parser) GetStructDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return p.json.GetStructDeep(pattern, pointer, mapping...)
+}
+
+// GetStructs converts any slice to given struct slice.
+func (p *Parser) GetStructs(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return p.json.GetStructs(pattern, pointer, mapping...)
+}
+
+// GetStructsDeep converts any slice to given struct slice recursively.
+func (p *Parser) GetStructsDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return p.json.GetStructsDeep(pattern, pointer, mapping...)
+}
+
+// GetToStruct is alias of GetStruct.
+// Deprecated.
+func (p *Parser) GetToStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	return p.json.GetStruct(pattern, pointer, mapping...)
 }
 
 // Set sets value with specified <pattern>.
diff --git a/g/frame/gins/gins.go b/g/frame/gins/gins.go
index f2030224d..3414599cd 100644
--- a/g/frame/gins/gins.go
+++ b/g/frame/gins/gins.go
@@ -87,75 +87,34 @@ func Database(name ...string) gdb.DB {
 				glog.Error(`database init failed: "database" node not found, is config file or configuration missing?`)
 				return nil
 			}
-			for group, v := range m {
+			// Parse <m> as map-slice.
+			for group, groupConfig := range m {
 				cg := gdb.ConfigGroup{}
-				if list, ok := v.([]interface{}); ok {
-					for _, nodeValue := range list {
-						node := gdb.ConfigNode{}
-						nodeMap := nodeValue.(map[string]interface{})
-						if value, ok := nodeMap["host"]; ok {
-							node.Host = gconv.String(value)
+				switch value := groupConfig.(type) {
+				case []interface{}:
+					for _, v := range value {
+						if node := parseDBConfigNode(v); node != nil {
+							cg = append(cg, *node)
 						}
-						if value, ok := nodeMap["port"]; ok {
-							node.Port = gconv.String(value)
-						}
-						if value, ok := nodeMap["user"]; ok {
-							node.User = gconv.String(value)
-						}
-						if value, ok := nodeMap["pass"]; ok {
-							node.Pass = gconv.String(value)
-						}
-						if value, ok := nodeMap["name"]; ok {
-							node.Name = gconv.String(value)
-						}
-						if value, ok := nodeMap["type"]; ok {
-							node.Type = gconv.String(value)
-						}
-						if value, ok := nodeMap["role"]; ok {
-							node.Role = gconv.String(value)
-						}
-						if value, ok := nodeMap["charset"]; ok {
-							node.Charset = gconv.String(value)
-						}
-						if value, ok := nodeMap["priority"]; ok {
-							node.Priority = gconv.Int(value)
-						}
-						// Deprecated
-						if value, ok := nodeMap["linkinfo"]; ok {
-							node.LinkInfo = gconv.String(value)
-						}
-						// Deprecated
-						if value, ok := nodeMap["link-info"]; ok {
-							node.LinkInfo = gconv.String(value)
-						}
-						if value, ok := nodeMap["linkInfo"]; ok {
-							node.LinkInfo = gconv.String(value)
-						}
-						// Deprecated
-						if value, ok := nodeMap["max-idle"]; ok {
-							node.MaxIdleConnCount = gconv.Int(value)
-						}
-						if value, ok := nodeMap["maxIdle"]; ok {
-							node.MaxIdleConnCount = gconv.Int(value)
-						}
-						// Deprecated
-						if value, ok := nodeMap["max-open"]; ok {
-							node.MaxOpenConnCount = gconv.Int(value)
-						}
-						if value, ok := nodeMap["maxOpen"]; ok {
-							node.MaxOpenConnCount = gconv.Int(value)
-						}
-						// Deprecated
-						if value, ok := nodeMap["max-lifetime"]; ok {
-							node.MaxConnLifetime = gconv.Int(value)
-						}
-						if value, ok := nodeMap["maxLifetime"]; ok {
-							node.MaxConnLifetime = gconv.Int(value)
-						}
-						cg = append(cg, node)
+					}
+				case map[string]interface{}:
+					if node := parseDBConfigNode(value); node != nil {
+						cg = append(cg, *node)
 					}
 				}
-				gdb.AddConfigGroup(group, cg)
+				if len(cg) > 0 {
+					gdb.AddConfigGroup(group, cg)
+				}
+			}
+			// Parse <m> as a single node configuration.
+			if node := parseDBConfigNode(m); node != nil {
+				cg := gdb.ConfigGroup{}
+				if node.LinkInfo != "" || node.Host != "" {
+					cg = append(cg, *node)
+				}
+				if len(cg) > 0 {
+					gdb.AddConfigGroup(group, cg)
+				}
 			}
 			addConfigMonitor(key, config)
 		}
@@ -172,6 +131,81 @@ func Database(name ...string) gdb.DB {
 	return nil
 }
 
+// 解析数据库配置节点项
+func parseDBConfigNode(value interface{}) *gdb.ConfigNode {
+	nodeMap, ok := value.(map[string]interface{})
+	if !ok {
+		return nil
+	}
+	node := &gdb.ConfigNode{}
+	if value, ok := nodeMap["host"]; ok {
+		node.Host = gconv.String(value)
+	}
+	if value, ok := nodeMap["port"]; ok {
+		node.Port = gconv.String(value)
+	}
+	if value, ok := nodeMap["user"]; ok {
+		node.User = gconv.String(value)
+	}
+	if value, ok := nodeMap["pass"]; ok {
+		node.Pass = gconv.String(value)
+	}
+	if value, ok := nodeMap["name"]; ok {
+		node.Name = gconv.String(value)
+	}
+	if value, ok := nodeMap["type"]; ok {
+		node.Type = gconv.String(value)
+	}
+	if value, ok := nodeMap["role"]; ok {
+		node.Role = gconv.String(value)
+	}
+	if value, ok := nodeMap["charset"]; ok {
+		node.Charset = gconv.String(value)
+	}
+	if value, ok := nodeMap["priority"]; ok {
+		node.Priority = gconv.Int(value)
+	}
+	if value, ok := nodeMap["linkinfo"]; ok {
+		node.LinkInfo = gconv.String(value)
+	}
+	if value, ok := nodeMap["link-info"]; ok {
+		node.LinkInfo = gconv.String(value)
+	}
+	if value, ok := nodeMap["linkInfo"]; ok {
+		node.LinkInfo = gconv.String(value)
+	}
+	if value, ok := nodeMap["link"]; ok {
+		node.LinkInfo = gconv.String(value)
+	}
+	if value, ok := nodeMap["max-idle"]; ok {
+		node.MaxIdleConnCount = gconv.Int(value)
+	}
+	if value, ok := nodeMap["maxIdle"]; ok {
+		node.MaxIdleConnCount = gconv.Int(value)
+	}
+	if value, ok := nodeMap["max-open"]; ok {
+		node.MaxOpenConnCount = gconv.Int(value)
+	}
+	if value, ok := nodeMap["maxOpen"]; ok {
+		node.MaxOpenConnCount = gconv.Int(value)
+	}
+	if value, ok := nodeMap["max-lifetime"]; ok {
+		node.MaxConnLifetime = gconv.Int(value)
+	}
+	if value, ok := nodeMap["maxLifetime"]; ok {
+		node.MaxConnLifetime = gconv.Int(value)
+	}
+	// Parse link syntax.
+	if node.LinkInfo != "" && node.Type == "" {
+		match, _ := gregex.MatchString(`([a-z]+):(.+)`, node.LinkInfo)
+		if len(match) == 3 {
+			node.Type = match[1]
+			node.LinkInfo = match[2]
+		}
+	}
+	return node
+}
+
 // Redis操作对象，使用了连接池
 func Redis(name ...string) *gredis.Redis {
 	config := Config()
diff --git a/g/net/ghttp/ghttp_request_post.go b/g/net/ghttp/ghttp_request_post.go
index 6a594fd1b..193544256 100644
--- a/g/net/ghttp/ghttp_request_post.go
+++ b/g/net/ghttp/ghttp_request_post.go
@@ -154,5 +154,5 @@ func (r *Request) GetPostToStruct(pointer interface{}, mapping ...map[string]str
 	for k, v := range r.GetPostMap() {
 		params[k] = v
 	}
-	return gconv.Struct(params, pointer, tagMap)
+	return gconv.StructDeep(params, pointer, tagMap)
 }
diff --git a/g/os/gcfg/gcfg.go b/g/os/gcfg/gcfg.go
index 1badfa033..adb3fa570 100644
--- a/g/os/gcfg/gcfg.go
+++ b/g/os/gcfg/gcfg.go
@@ -489,14 +489,41 @@ func (c *Config) GetGTime(pattern string, format ...string) *gtime.Time {
 	return nil
 }
 
-func (c *Config) GetToStruct(pattern string, pointer interface{}, def ...interface{}) error {
+func (c *Config) GetStruct(pattern string, pointer interface{}, mapping ...map[string]string) error {
 	if j := c.getJson(); j != nil {
-		return j.GetToStruct(pattern, pointer)
+		return j.GetStruct(pattern, pointer, mapping...)
 	}
 	return errors.New("config file not found")
 }
 
-// Deprecated. See Clear.
+func (c *Config) GetStructDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	if j := c.getJson(); j != nil {
+		return j.GetStructDeep(pattern, pointer, mapping...)
+	}
+	return errors.New("config file not found")
+}
+
+func (c *Config) GetStructs(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	if j := c.getJson(); j != nil {
+		return j.GetStructs(pattern, pointer, mapping...)
+	}
+	return errors.New("config file not found")
+}
+
+func (c *Config) GetStructsDeep(pattern string, pointer interface{}, mapping ...map[string]string) error {
+	if j := c.getJson(); j != nil {
+		return j.GetStructsDeep(pattern, pointer, mapping...)
+	}
+	return errors.New("config file not found")
+}
+
+// Deprecated.
+func (c *Config) GetToStruct(pattern string, pointer interface{}) error {
+	return c.GetStruct(pattern, pointer)
+}
+
+// Reload is alias of Clear.
+// Deprecated.
 func (c *Config) Reload() {
 	c.jsons.Clear()
 }
diff --git a/g/os/gfile/gfile.go b/g/os/gfile/gfile.go
index 81db327e2..717ffae7e 100644
--- a/g/os/gfile/gfile.go
+++ b/g/os/gfile/gfile.go
@@ -11,11 +11,8 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"github.com/gogf/gf/g/container/gtype"
-	"github.com/gogf/gf/g/text/gregex"
-	"github.com/gogf/gf/g/text/gstr"
-	"github.com/gogf/gf/g/util/gconv"
 	"io"
+	"io/ioutil"
 	"os"
 	"os/exec"
 	"os/user"
@@ -24,6 +21,11 @@ import (
 	"sort"
 	"strings"
 	"time"
+
+	"github.com/gogf/gf/g/container/gtype"
+	"github.com/gogf/gf/g/text/gregex"
+	"github.com/gogf/gf/g/text/gstr"
+	"github.com/gogf/gf/g/util/gconv"
 )
 
 const (
@@ -142,29 +144,109 @@ func Rename(src string, dst string) error {
 	return Move(src, dst)
 }
 
-// Copy file from <src> to <dst>.
+// Copy file/directory from <src> to <dst>.
 //
-// @TODO directory copy support.
+// If <src> is file, it calls CopyFile to implements copy feature,
+// or else it calls CopyDir.
 func Copy(src string, dst string) error {
-	srcFile, err := Open(src)
+	if IsFile(src) {
+		return CopyFile(src, dst)
+	}
+	return CopyDir(src, dst)
+}
+
+// CopyFile copies the contents of the file named src to the file named
+// by dst. The file will be created if it does not already exist. If the
+// destination file exists, all it's contents will be replaced by the contents
+// of the source file. The file mode will be copied from the source and
+// the copied data is synced/flushed to stable storage.
+// Thanks: https://gist.github.com/r0l1/92462b38df26839a3ca324697c8cba04
+func CopyFile(src, dst string) (err error) {
+	in, err := os.Open(src)
+	if err != nil {
+		return
+	}
+	defer func() {
+		if e := in.Close(); e != nil {
+			err = e
+		}
+	}()
+	out, err := os.Create(dst)
+	if err != nil {
+		return
+	}
+	defer func() {
+		if e := out.Close(); e != nil {
+			err = e
+		}
+	}()
+	_, err = io.Copy(out, in)
+	if err != nil {
+		return
+	}
+	err = out.Sync()
+	if err != nil {
+		return
+	}
+	si, err := os.Stat(src)
+	if err != nil {
+		return
+	}
+	err = os.Chmod(dst, si.Mode())
+	if err != nil {
+		return
+	}
+	return
+}
+
+// CopyDir recursively copies a directory tree, attempting to preserve permissions.
+// Source directory must exist, destination directory must *not* exist.
+// Symlinks are ignored and skipped.
+func CopyDir(src string, dst string) (err error) {
+	src = filepath.Clean(src)
+	dst = filepath.Clean(dst)
+	si, err := os.Stat(src)
 	if err != nil {
 		return err
 	}
-	defer srcFile.Close()
-	dstFile, err := Create(dst)
-	if err != nil {
-		return err
+	if !si.IsDir() {
+		return fmt.Errorf("source is not a directory")
 	}
-	defer dstFile.Close()
-	_, err = io.Copy(dstFile, srcFile)
-	if err != nil {
-		return err
+	_, err = os.Stat(dst)
+	if err != nil && !os.IsNotExist(err) {
+		return
 	}
-	err = dstFile.Sync()
-	if err != nil {
-		return err
+	if err == nil {
+		return fmt.Errorf("destination already exists")
 	}
-	return nil
+	err = os.MkdirAll(dst, si.Mode())
+	if err != nil {
+		return
+	}
+	entries, err := ioutil.ReadDir(src)
+	if err != nil {
+		return
+	}
+	for _, entry := range entries {
+		srcPath := filepath.Join(src, entry.Name())
+		dstPath := filepath.Join(dst, entry.Name())
+		if entry.IsDir() {
+			err = CopyDir(srcPath, dstPath)
+			if err != nil {
+				return
+			}
+		} else {
+			// Skip symlinks.
+			if entry.Mode()&os.ModeSymlink != 0 {
+				continue
+			}
+			err = CopyFile(srcPath, dstPath)
+			if err != nil {
+				return
+			}
+		}
+	}
+	return
 }
 
 // DirNames returns sub-file names of given directory <path>.
diff --git a/g/os/gfile/gfile_z_test.go b/g/os/gfile/gfile_z_test.go
index b7d438434..44b8008ed 100644
--- a/g/os/gfile/gfile_z_test.go
+++ b/g/os/gfile/gfile_z_test.go
@@ -1,12 +1,13 @@
 package gfile_test
 
 import (
-	"github.com/gogf/gf/g/os/gfile"
-	"github.com/gogf/gf/g/test/gtest"
 	"os"
 	"path/filepath"
 	"strings"
 	"testing"
+
+	"github.com/gogf/gf/g/os/gfile"
+	"github.com/gogf/gf/g/test/gtest"
 )
 
 func TestIsDir(t *testing.T) {
@@ -677,3 +678,71 @@ func TestMainPkgPath(t *testing.T) {
 		gtest.Assert(reads, "")
 	})
 }
+
+func TestCopyFile(t *testing.T) {
+	gtest.Case(t, func() {
+		var (
+			paths  string = "/testfile_copyfile1.txt"
+			topath string = "/testfile_copyfile2.txt"
+		)
+
+		createTestFile(paths, "")
+		defer delTestFiles(paths)
+
+		gtest.Assert(gfile.CopyFile(testpath()+paths, testpath()+topath), nil)
+		defer delTestFiles(topath)
+
+		gtest.Assert(gfile.IsFile(testpath()+topath), true)
+		gtest.AssertNE(gfile.CopyFile("", ""), nil)
+	})
+}
+
+func TestCopyDir(t *testing.T) {
+	gtest.Case(t, func() {
+		var (
+			dirpath1 string = "/testcopydir1"
+			dirpath2 string = "/testcopydir2"
+		)
+
+		havelist1 := []string{
+			"t1.txt",
+			"t2.txt",
+		}
+
+		createDir(dirpath1)
+		for _, v := range havelist1 {
+			createTestFile(dirpath1+"/"+v, "")
+		}
+		defer delTestFiles(dirpath1)
+
+		yfolder := testpath() + dirpath1
+		tofolder := testpath() + dirpath2
+
+		if gfile.IsDir(tofolder) {
+			gtest.Assert(gfile.Remove(tofolder), nil)
+			gtest.Assert(gfile.Remove(""), nil)
+		}
+
+		gtest.Assert(gfile.CopyDir(yfolder, tofolder), nil)
+		defer delTestFiles(tofolder)
+
+		// 检查复制后的旧文件夹是否真实存在
+		gtest.Assert(gfile.IsDir(yfolder), true)
+
+		// 检查复制后的旧文件夹中的文件是否真实存在
+		for _, v := range havelist1 {
+			gtest.Assert(gfile.IsFile(yfolder+"/"+v), true)
+		}
+
+		// 检查复制后的新文件夹是否真实存在
+		gtest.Assert(gfile.IsDir(tofolder), true)
+
+		// 检查复制后的新文件夹中的文件是否真实存在
+		for _, v := range havelist1 {
+			gtest.Assert(gfile.IsFile(tofolder+"/"+v), true)
+		}
+
+		gtest.Assert(gfile.Remove(tofolder), nil)
+		gtest.Assert(gfile.Remove(""), nil)
+	})
+}
diff --git a/g/util/gconv/gconv_slice.go b/g/util/gconv/gconv_slice.go
index 28ef116e7..2b7178bae 100644
--- a/g/util/gconv/gconv_slice.go
+++ b/g/util/gconv/gconv_slice.go
@@ -7,10 +7,53 @@
 package gconv
 
 import (
-	"github.com/gogf/gf/g/text/gstr"
+	"errors"
+	"fmt"
 	"reflect"
+
+	"github.com/gogf/gf/g/text/gstr"
 )
 
+// SliceInt is alias of Ints.
+func SliceInt(i interface{}) []int {
+	return Ints(i)
+}
+
+// SliceStr is alias of Strings.
+func SliceStr(i interface{}) []string {
+	return Strings(i)
+}
+
+// SliceAny is alias of Interfaces.
+func SliceAny(i interface{}) []interface{} {
+	return Interfaces(i)
+}
+
+// SliceFloat is alias of Floats.
+func SliceFloat(i interface{}) []float64 {
+	return Floats(i)
+}
+
+// SliceMap is alias of Maps.
+func SliceMap(i interface{}) []map[string]interface{} {
+	return Maps(i)
+}
+
+// SliceMapDeep is alias of MapsDeep.
+func SliceMapDeep(i interface{}) []map[string]interface{} {
+	return MapsDeep(i)
+}
+
+// SliceStruct is alias of Structs.
+func SliceStruct(params interface{}, pointer interface{}, mapping ...map[string]string) (err error) {
+	return Structs(params, pointer, mapping...)
+}
+
+// SliceStructDeep is alias of StructsDeep.
+func SliceStructDeep(params interface{}, pointer interface{}, mapping ...map[string]string) (err error) {
+	return StructsDeep(params, pointer, mapping...)
+}
+
 // Ints converts <i> to []int.
 func Ints(i interface{}) []int {
 	if i == nil {
@@ -306,9 +349,7 @@ func Interfaces(i interface{}) []interface{} {
 				kind = rv.Kind()
 			}
 			switch kind {
-			case reflect.Slice:
-				fallthrough
-			case reflect.Array:
+			case reflect.Slice, reflect.Array:
 				for i := 0; i < rv.Len(); i++ {
 					array = append(array, rv.Index(i).Interface())
 				}
@@ -348,3 +389,99 @@ func Maps(i interface{}) []map[string]interface{} {
 		return list
 	}
 }
+
+// MapsDeep converts <i> to []map[string]interface{} recursively.
+func MapsDeep(i interface{}) []map[string]interface{} {
+	if i == nil {
+		return nil
+	}
+	if r, ok := i.([]map[string]interface{}); ok {
+		return r
+	} else {
+		array := Interfaces(i)
+		if len(array) == 0 {
+			return nil
+		}
+		list := make([]map[string]interface{}, len(array))
+		for k, v := range array {
+			list[k] = MapDeep(v)
+		}
+		return list
+	}
+}
+
+// Structs converts any slice to given struct slice.
+func Structs(params interface{}, pointer interface{}, mapping ...map[string]string) (err error) {
+	return doStructs(params, pointer, false, mapping...)
+}
+
+// StructsDeep converts any slice to given struct slice recursively.
+func StructsDeep(params interface{}, pointer interface{}, mapping ...map[string]string) (err error) {
+	return doStructs(params, pointer, true, mapping...)
+}
+
+// doStructs converts any slice to given struct slice.
+//
+// The parameter <params> should be type of slice.
+//
+// The parameter <pointer> should be type of pointer to slice of struct.
+// Note that if <pointer> is a pointer to another pointer of type of slice of struct,
+// it will create the struct/pointer internally.
+func doStructs(params interface{}, pointer interface{}, deep bool, mapping ...map[string]string) (err error) {
+	if params == nil {
+		return errors.New("params cannot be nil")
+	}
+	if pointer == nil {
+		return errors.New("object pointer cannot be nil")
+	}
+	pointerRt := reflect.TypeOf(pointer)
+	if kind := pointerRt.Kind(); kind != reflect.Ptr {
+		return fmt.Errorf("pointer should be type of pointer, but got: %v", kind)
+	}
+
+	rv := reflect.ValueOf(params)
+	kind := rv.Kind()
+	if kind == reflect.Ptr {
+		rv = rv.Elem()
+		kind = rv.Kind()
+	}
+	switch kind {
+	case reflect.Slice, reflect.Array:
+		array := reflect.MakeSlice(pointerRt.Elem(), rv.Len(), rv.Len())
+		itemType := array.Index(0).Type()
+		for i := 0; i < rv.Len(); i++ {
+			if itemType.Kind() == reflect.Ptr {
+				// Slice element is type pointer.
+				e := reflect.New(itemType.Elem()).Elem()
+				if deep {
+					if err = StructDeep(rv.Index(i).Interface(), e, mapping...); err != nil {
+						return err
+					}
+				} else {
+					if err = Struct(rv.Index(i).Interface(), e, mapping...); err != nil {
+						return err
+					}
+				}
+				array.Index(i).Set(e.Addr())
+			} else {
+				// Slice element is not type of pointer.
+				e := reflect.New(itemType).Elem()
+
+				if deep {
+					if err = StructDeep(rv.Index(i).Interface(), e, mapping...); err != nil {
+						return err
+					}
+				} else {
+					if err = Struct(rv.Index(i).Interface(), e, mapping...); err != nil {
+						return err
+					}
+				}
+				array.Index(i).Set(e)
+			}
+		}
+		reflect.ValueOf(pointer).Elem().Set(array)
+		return nil
+	default:
+		return fmt.Errorf("params should be type of slice, but got: %v", kind)
+	}
+}
diff --git a/g/util/gconv/gconv_struct.go b/g/util/gconv/gconv_struct.go
index a4df30132..e3a0f5137 100644
--- a/g/util/gconv/gconv_struct.go
+++ b/g/util/gconv/gconv_struct.go
@@ -52,6 +52,13 @@ func Struct(params interface{}, pointer interface{}, mapping ...map[string]strin
 			return errors.New("object pointer cannot be nil")
 		}
 		elem = rv.Elem()
+		// Auto create struct object.
+		// For example, if <pointer> is **User, then <elem> is *User, which is a pointer to User.
+		if elem.Type().Kind() == reflect.Ptr && (!elem.IsValid() || elem.IsNil()) {
+			e := reflect.New(elem.Type().Elem()).Elem()
+			elem.Set(e.Addr())
+			elem = e
+		}
 	}
 	// It only performs one converting to the same attribute.
 	// doneMap is used to check repeated converting.
diff --git a/g/util/gconv/gconv_z_unit_slice_test.go b/g/util/gconv/gconv_z_unit_slice_test.go
index 017a3d9b6..3b7c54322 100644
--- a/g/util/gconv/gconv_z_unit_slice_test.go
+++ b/g/util/gconv/gconv_z_unit_slice_test.go
@@ -7,10 +7,11 @@
 package gconv_test
 
 import (
+	"testing"
+
 	"github.com/gogf/gf/g"
 	"github.com/gogf/gf/g/test/gtest"
 	"github.com/gogf/gf/g/util/gconv"
-	"testing"
 )
 
 func Test_Slice(t *testing.T) {
@@ -35,3 +36,50 @@ func Test_Slice_PrivateAttribute(t *testing.T) {
 		gtest.Assert(gconv.Interfaces(user), g.Slice{1})
 	})
 }
+
+func Test_Slice_Structs(t *testing.T) {
+	type Base struct {
+		Age int
+	}
+	type User struct {
+		Id   int
+		Name string
+		Base
+	}
+
+	gtest.Case(t, func() {
+		users := make([]User, 0)
+		params := []g.Map{
+			{"id": 1, "name": "john", "age": 18},
+			{"id": 2, "name": "smith", "age": 20},
+		}
+		err := gconv.Structs(params, &users)
+		gtest.Assert(err, nil)
+		gtest.Assert(len(users), 2)
+		gtest.Assert(users[0].Id, params[0]["id"])
+		gtest.Assert(users[0].Name, params[0]["name"])
+		gtest.Assert(users[0].Age, 0)
+
+		gtest.Assert(users[1].Id, params[1]["id"])
+		gtest.Assert(users[1].Name, params[1]["name"])
+		gtest.Assert(users[1].Age, 0)
+	})
+
+	gtest.Case(t, func() {
+		users := make([]User, 0)
+		params := []g.Map{
+			{"id": 1, "name": "john", "age": 18},
+			{"id": 2, "name": "smith", "age": 20},
+		}
+		err := gconv.StructsDeep(params, &users)
+		gtest.Assert(err, nil)
+		gtest.Assert(len(users), 2)
+		gtest.Assert(users[0].Id, params[0]["id"])
+		gtest.Assert(users[0].Name, params[0]["name"])
+		gtest.Assert(users[0].Age, params[0]["age"])
+
+		gtest.Assert(users[1].Id, params[1]["id"])
+		gtest.Assert(users[1].Name, params[1]["name"])
+		gtest.Assert(users[1].Age, params[1]["age"])
+	})
+}
diff --git a/g/util/gconv/gconv_z_unit_struct_test.go b/g/util/gconv/gconv_z_unit_struct_test.go
index 0078302c3..a424eab2e 100644
--- a/g/util/gconv/gconv_z_unit_struct_test.go
+++ b/g/util/gconv/gconv_z_unit_struct_test.go
@@ -26,9 +26,8 @@ func Test_Struct_Basic1(t *testing.T) {
 			Pass1    string `gconv:"password1"`
 			Pass2    string `gconv:"password2"`
 		}
-		user := (*User)(nil)
 		// 使用默认映射规则绑定属性值到对象
-		user = new(User)
+		user := new(User)
 		params1 := g.Map{
 			"uid":       1,
 			"Name":      "john",
@@ -339,6 +338,29 @@ func Test_Struct_PrivateAttribute(t *testing.T) {
 }
 
 func Test_Struct_Deep(t *testing.T) {
+
+	gtest.Case(t, func() {
+		type Base struct {
+			Age int
+		}
+		type User struct {
+			Id   int
+			Name string
+			Base
+		}
+		user := new(User)
+		params := g.Map{
+			"id":   1,
+			"name": "john",
+			"age":  18,
+		}
+		err := gconv.StructDeep(params, user)
+		gtest.Assert(err, nil)
+		gtest.Assert(user.Id, params["id"])
+		gtest.Assert(user.Name, params["name"])
+		gtest.Assert(user.Age, params["age"])
+	})
+
 	gtest.Case(t, func() {
 		type Ids struct {
 			Id  int `json:"id"`
@@ -363,7 +385,8 @@ func Test_Struct_Deep(t *testing.T) {
 			"create_time": "2019",
 		}
 		user := new(User)
-		gconv.StructDeep(data, user)
+		err := gconv.StructDeep(data, user)
+		gtest.Assert(err, nil)
 		gtest.Assert(user.Id, 100)
 		gtest.Assert(user.Uid, 101)
 		gtest.Assert(user.Nickname, "T1")
@@ -432,3 +455,38 @@ func Test_Struct_Time(t *testing.T) {
 		gtest.Assert(user.CreateTime.Time.UTC().String(), now.UTC().String())
 	})
 }
+
+// Auto create struct when given pointer.
+func Test_Struct_Create(t *testing.T) {
+	gtest.Case(t, func() {
+		type User struct {
+			Uid  int
+			Name string
+		}
+		user := (*User)(nil)
+		params := g.Map{
+			"uid":  1,
+			"Name": "john",
+		}
+		err := gconv.Struct(params, &user)
+		gtest.Assert(err, nil)
+		gtest.Assert(user.Uid, 1)
+		gtest.Assert(user.Name, "john")
+	})
+
+	gtest.Case(t, func() {
+		type User struct {
+			Uid  int
+			Name string
+		}
+		user := (*User)(nil)
+		params := g.Map{
+			"uid":  1,
+			"Name": "john",
+		}
+		err := gconv.Struct(params, user)
+		gtest.AssertNE(err, nil)
+		gtest.Assert(user, nil)
+	})
+
+}
diff --git a/geg/database/gdb/mysql/config2.toml b/geg/database/gdb/mysql/config2.toml
new file mode 100644
index 000000000..8722ede8c
--- /dev/null
+++ b/geg/database/gdb/mysql/config2.toml
@@ -0,0 +1,4 @@
+
+# MySQL数据库配置
+[database]
+    link = "mysql:root:8692651@tcp(192.168.1.11:3306)/test"
diff --git a/geg/database/gdb/mysql/config3.toml b/geg/database/gdb/mysql/config3.toml
new file mode 100644
index 000000000..ce3512864
--- /dev/null
+++ b/geg/database/gdb/mysql/config3.toml
@@ -0,0 +1,7 @@
+
+# MySQL数据库配置
+[database]
+    [database.default]
+        link = "mysql:root:8692651@tcp(192.168.1.11:3306)/test"
+    [database.user]
+        link = "mysql:root:8692651@tcp(192.168.1.11:3306)/test"
\ No newline at end of file
diff --git a/geg/database/gdb/mysql/gdb_config.go b/geg/database/gdb/mysql/gdb_config.go
index b27c0a318..5bab7abee 100644
--- a/geg/database/gdb/mysql/gdb_config.go
+++ b/geg/database/gdb/mysql/gdb_config.go
@@ -6,7 +6,6 @@ import (
 )
 
 func main() {
-	g.Config().AddPath("/home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/frame")
 	if r, err := g.DB().Table("user").Where("uid=?", 1).One(); err == nil {
 		fmt.Println(r["uid"].Int())
 		fmt.Println(r["name"].String())
diff --git a/geg/database/gdb/mysql/gdb_config2.go b/geg/database/gdb/mysql/gdb_config2.go
new file mode 100644
index 000000000..330d78108
--- /dev/null
+++ b/geg/database/gdb/mysql/gdb_config2.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+	"github.com/gogf/gf/g"
+)
+
+func main() {
+	g.Config().SetFileName("config2.toml")
+	if r, err := g.DB().Table("user").Where("uid=?", 1).One(); err == nil {
+		fmt.Println(r["uid"].Int())
+		fmt.Println(r["name"].String())
+	} else {
+		fmt.Println(err)
+	}
+}
diff --git a/geg/database/gdb/mysql/gdb_config3.go b/geg/database/gdb/mysql/gdb_config3.go
new file mode 100644
index 000000000..37608057d
--- /dev/null
+++ b/geg/database/gdb/mysql/gdb_config3.go
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+	"github.com/gogf/gf/g"
+)
+
+func main() {
+	g.Config().SetFileName("config3.toml")
+	if r, err := g.DB().Table("user").Where("uid=?", 1).One(); err == nil {
+		fmt.Println(r["uid"].Int())
+		fmt.Println(r["name"].String())
+	} else {
+		fmt.Println(err)
+	}
+
+	if r, err := g.DB("user").Table("user").Where("uid=?", 1).One(); err == nil {
+		fmt.Println(r["uid"].Int())
+		fmt.Println(r["name"].String())
+	} else {
+		fmt.Println(err)
+	}
+}
diff --git a/geg/database/gdb/mysql/gdb_struct.go b/geg/database/gdb/mysql/gdb_struct.go
new file mode 100644
index 000000000..1a3cb26de
--- /dev/null
+++ b/geg/database/gdb/mysql/gdb_struct.go
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/gogf/gf/g"
+)
+
+func main() {
+	db := g.DB()
+	// 开启调试模式，以便于记录所有执行的SQL
+	db.SetDebug(true)
+
+	type User struct {
+		Uid  int
+		Name string
+	}
+	user := (*User)(nil)
+	fmt.Println(user)
+	err := db.Table("test").Where("id=1").Struct(&user)
+	fmt.Println(err)
+	fmt.Println(user)
+}
diff --git a/geg/database/gdb/mysql/gdb_value.go b/geg/database/gdb/mysql/gdb_value.go
index e53c42376..5174fcef5 100644
--- a/geg/database/gdb/mysql/gdb_value.go
+++ b/geg/database/gdb/mysql/gdb_value.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+
 	"github.com/gogf/gf/g"
 )
 
diff --git a/geg/os/gfsnotify/gfsnotify.go b/geg/os/gfsnotify/gfsnotify.go
index 1b8da5698..f93992764 100644
--- a/geg/os/gfsnotify/gfsnotify.go
+++ b/geg/os/gfsnotify/gfsnotify.go
@@ -7,7 +7,7 @@ import (
 
 func main() {
 	//path := `D:\temp`
-	path := "/home/john/temp"
+	path := "/Users/john/Temp"
 	_, err := gfsnotify.Add(path, func(event *gfsnotify.Event) {
 		glog.Println(event)
 	})
diff --git a/geg/other/test.go b/geg/other/test.go
index c2b8288c3..381a581b9 100644
--- a/geg/other/test.go
+++ b/geg/other/test.go
@@ -1,40 +1,19 @@
 package main
 
 import (
+	"encoding/base64"
 	"fmt"
-
-	"github.com/gogf/gf/g"
-
-	"github.com/gogf/gf/g/util/gconv"
-
-	"github.com/gogf/gf/g/encoding/gparser"
+	"github.com/gogf/gf/g/encoding/gbase64"
 )
 
 func main() {
-	type User struct {
-		Uid      int
-		Name     string
-		SiteUrl  string `gconv:"-"`
-		NickName string `gconv:"nickname, omitempty"`
-		Pass1    string `gconv:"password1"`
-		Pass2    string `gconv:"password2"`
-	}
-
-	g.Dump(gconv.Map(User{
-		Uid:     100,
-		Name:    "john",
-		SiteUrl: "https://goframe.org",
-		Pass1:   "123",
-		Pass2:   "456",
-	}))
-
-	s, err := gparser.VarToJsonString(User{
-		Uid:     100,
-		Name:    "john",
-		SiteUrl: "https://goframe.org",
-		Pass1:   "123",
-		Pass2:   "456",
-	})
+	data := "HwHsGhXMaGc==="
+	datab, err := gbase64.Decode([]byte(data))
 	fmt.Println(err)
-	fmt.Println(s)
+	fmt.Println(datab)
+	fmt.Println(string(datab))
+
+	s, e := base64.StdEncoding.DecodeString(data)
+	fmt.Println(e)
+	fmt.Println(string(s))
 }
diff --git a/geg/util/gconv/gconv_map_tag.go b/geg/util/gconv/gconv_map_tag.go
new file mode 100644
index 000000000..b7f653e44
--- /dev/null
+++ b/geg/util/gconv/gconv_map_tag.go
@@ -0,0 +1,18 @@
+package main
+
+import (
+	"github.com/gogf/gf/g"
+	"github.com/gogf/gf/g/util/gconv"
+)
+
+func main() {
+	type User struct {
+		Id   int    `json:"uid"`
+		Name string `my-tag:"nick-name" json:"name"`
+	}
+	user := &User{
+		Id:   1,
+		Name: "john",
+	}
+	g.Dump(gconv.Map(user, "my-tag"))
+}
diff --git a/geg/util/gconv/gconv_struct_create.go b/geg/util/gconv/gconv_struct_create.go
new file mode 100644
index 000000000..54d22e54d
--- /dev/null
+++ b/geg/util/gconv/gconv_struct_create.go
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"github.com/gogf/gf/g"
+	"github.com/gogf/gf/g/util/gconv"
+)
+
+func main() {
+	type User struct {
+		Uid  int
+		Name string
+	}
+	user := (*User)(nil)
+	params := g.Map{
+		"uid":  1,
+		"name": "john",
+	}
+	err := gconv.Struct(params, &user)
+	if err != nil {
+		panic(err)
+	}
+	g.Dump(user)
+}
diff --git a/go.mod b/go.mod
index ef37cb8d6..28729e4f6 100644
--- a/go.mod
+++ b/go.mod
@@ -1 +1,2 @@
 module github.com/gogf/gf
+
diff --git a/version.go b/version.go
index 103986c4d..4c74aa0db 100644
--- a/version.go
+++ b/version.go
@@ -1,4 +1,4 @@
 package gf
 
-const VERSION = "v1.7.2"
+const VERSION = "v1.7.3"
 const AUTHORS = "john<john@goframe.org>"