diff --git a/.example/other/test.go b/.example/other/test.go
index f4b966b39..fba507872 100644
--- a/.example/other/test.go
+++ b/.example/other/test.go
@@ -2,23 +2,10 @@ package main
 
 import (
 	"fmt"
-	"github.com/gogf/gf/os/gres"
+	"github.com/gogf/gf/frame/g"
 )
 
 func main() {
-	//buffer := bytes.NewBuffer(nil)
-	//buffer.WriteString("\x00")
-	//hex.Decode()
-	//if v, e := strconv.ParseInt(s[2:], 16, 64); e == nil {
-	//	return v
-	//}
-	//s := "\x00"
-	//fmt.Println([]byte(s))
-	//return
-	err := gres.PackToGoFile(
-		"/Users/john/Workspace/Go/GOPATH/src/github.com/gogf/gf-cli/public",
-		"/Users/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/.example/other/config.go",
-		"main",
-	)
-	fmt.Println(err)
+	fmt.Println(g.Cfg().FilePath())
+	g.Cfg().Dump()
 }
diff --git a/container/gtype/bool.go b/container/gtype/bool.go
index e090283e0..33edaa57f 100644
--- a/container/gtype/bool.go
+++ b/container/gtype/bool.go
@@ -57,7 +57,7 @@ func (v *Bool) Val() bool {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Bool) Cas(old, new bool) bool {
+func (v *Bool) Cas(old, new bool) (swapped bool) {
 	var oldInt32, newInt32 int32
 	if old {
 		oldInt32 = 1
diff --git a/container/gtype/byte.go b/container/gtype/byte.go
index 02a5c36f9..88f1fdcc1 100644
--- a/container/gtype/byte.go
+++ b/container/gtype/byte.go
@@ -49,7 +49,7 @@ func (v *Byte) Add(delta byte) (new byte) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Byte) Cas(old, new byte) bool {
+func (v *Byte) Cas(old, new byte) (swapped bool) {
 	return atomic.CompareAndSwapInt32(&v.value, int32(old), int32(new))
 }
 
diff --git a/container/gtype/float32.go b/container/gtype/float32.go
index 4334ac3b3..11e834c11 100644
--- a/container/gtype/float32.go
+++ b/container/gtype/float32.go
@@ -62,7 +62,7 @@ func (v *Float32) Add(delta float32) (new float32) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Float32) Cas(old, new float32) bool {
+func (v *Float32) Cas(old, new float32) (swapped bool) {
 	return atomic.CompareAndSwapUint32(&v.value, math.Float32bits(old), math.Float32bits(new))
 }
 
diff --git a/container/gtype/float64.go b/container/gtype/float64.go
index f3eaf9cdc..4c01f4208 100644
--- a/container/gtype/float64.go
+++ b/container/gtype/float64.go
@@ -62,7 +62,7 @@ func (v *Float64) Add(delta float64) (new float64) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Float64) Cas(old, new float64) bool {
+func (v *Float64) Cas(old, new float64) (swapped bool) {
 	return atomic.CompareAndSwapUint64(&v.value, math.Float64bits(old), math.Float64bits(new))
 }
 
diff --git a/container/gtype/int.go b/container/gtype/int.go
index e5e6a4210..cf2ee6157 100644
--- a/container/gtype/int.go
+++ b/container/gtype/int.go
@@ -49,7 +49,7 @@ func (v *Int) Add(delta int) (new int) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Int) Cas(old, new int) bool {
+func (v *Int) Cas(old, new int) (swapped bool) {
 	return atomic.CompareAndSwapInt64(&v.value, int64(old), int64(new))
 }
 
diff --git a/container/gtype/int32.go b/container/gtype/int32.go
index 148c55030..4131184d5 100644
--- a/container/gtype/int32.go
+++ b/container/gtype/int32.go
@@ -49,7 +49,7 @@ func (v *Int32) Add(delta int32) (new int32) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Int32) Cas(old, new int32) bool {
+func (v *Int32) Cas(old, new int32) (swapped bool) {
 	return atomic.CompareAndSwapInt32(&v.value, old, new)
 }
 
diff --git a/container/gtype/int64.go b/container/gtype/int64.go
index 678a7fdc5..484d948bf 100644
--- a/container/gtype/int64.go
+++ b/container/gtype/int64.go
@@ -49,7 +49,7 @@ func (v *Int64) Add(delta int64) (new int64) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Int64) Cas(old, new int64) bool {
+func (v *Int64) Cas(old, new int64) (swapped bool) {
 	return atomic.CompareAndSwapInt64(&v.value, old, new)
 }
 
diff --git a/container/gtype/uint.go b/container/gtype/uint.go
index 2d9e29778..bb50ea6c8 100644
--- a/container/gtype/uint.go
+++ b/container/gtype/uint.go
@@ -49,7 +49,7 @@ func (v *Uint) Add(delta uint) (new uint) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Uint) Cas(old, new uint) bool {
+func (v *Uint) Cas(old, new uint) (swapped bool) {
 	return atomic.CompareAndSwapUint64(&v.value, uint64(old), uint64(new))
 }
 
diff --git a/container/gtype/uint32.go b/container/gtype/uint32.go
index 589557741..5ef5bf2d6 100644
--- a/container/gtype/uint32.go
+++ b/container/gtype/uint32.go
@@ -49,7 +49,7 @@ func (v *Uint32) Add(delta uint32) (new uint32) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Uint32) Cas(old, new uint32) bool {
+func (v *Uint32) Cas(old, new uint32) (swapped bool) {
 	return atomic.CompareAndSwapUint32(&v.value, old, new)
 }
 
diff --git a/container/gtype/uint64.go b/container/gtype/uint64.go
index 8e9ddc83a..cede4aa6e 100644
--- a/container/gtype/uint64.go
+++ b/container/gtype/uint64.go
@@ -49,7 +49,7 @@ func (v *Uint64) Add(delta uint64) (new uint64) {
 }
 
 // Cas executes the compare-and-swap operation for value.
-func (v *Uint64) Cas(old, new uint64) bool {
+func (v *Uint64) Cas(old, new uint64) (swapped bool) {
 	return atomic.CompareAndSwapUint64(&v.value, old, new)
 }
 
diff --git a/container/gtype/z_bench_basic_test.go b/container/gtype/z_bench_basic_test.go
index c82185d0b..67c6ce3ca 100644
--- a/container/gtype/z_bench_basic_test.go
+++ b/container/gtype/z_bench_basic_test.go
@@ -49,6 +49,12 @@ func BenchmarkInt_Add(b *testing.B) {
 	}
 }
 
+func BenchmarkInt_Cas(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		it.Cas(i, i)
+	}
+}
+
 func BenchmarkInt32_Set(b *testing.B) {
 	for i := int32(0); i < int32(b.N); i++ {
 		it32.Set(i)
diff --git a/encoding/gcompress/gcompress_zip_file.go b/encoding/gcompress/gcompress_zip_file.go
index 6b78421b6..595138d2d 100644
--- a/encoding/gcompress/gcompress_zip_file.go
+++ b/encoding/gcompress/gcompress_zip_file.go
@@ -72,11 +72,11 @@ func doZipPathWriter(path string, zipWriter *zip.Writer, prefix ...string) error
 		headerPrefix = prefix[0]
 	}
 	headerPrefix = strings.TrimRight(headerPrefix, "\\/")
-	if gfile.IsDir(path) {
-		if len(headerPrefix) > 0 {
-			headerPrefix += "/"
-		}
-		headerPrefix = headerPrefix + gfile.Basename(path)
+	if len(headerPrefix) > 0 && gfile.IsDir(path) {
+		headerPrefix += "/"
+	}
+	if headerPrefix == "" {
+		headerPrefix = gfile.Basename(path)
 	}
 	headerPrefix = strings.Replace(headerPrefix, "//", "/", -1)
 	for _, file := range files {
diff --git a/net/ghttp/ghttp_response.go b/net/ghttp/ghttp_response.go
index 741728c27..8ada55ea7 100644
--- a/net/ghttp/ghttp_response.go
+++ b/net/ghttp/ghttp_response.go
@@ -90,16 +90,24 @@ func (r *Response) ServeFileDownload(path string, name ...string) {
 	r.Server.serveFile(r.Request, serveFile)
 }
 
-// RedirectTo redirects client to another location using http status 302.
-func (r *Response) RedirectTo(location string) {
+// RedirectTo redirects client to another location.
+// The optional parameter <code> specifies the http status code for redirecting,
+// which commonly can be 301 or 302. It's 302 in default.
+func (r *Response) RedirectTo(location string, code ...int) {
 	r.Header().Set("Location", location)
-	r.WriteHeader(http.StatusFound)
+	if len(code) > 0 {
+		r.WriteHeader(code[0])
+	} else {
+		r.WriteHeader(http.StatusFound)
+	}
 	r.Request.Exit()
 }
 
-// RedirectBack redirects client back to referer using http status 302.
-func (r *Response) RedirectBack() {
-	r.RedirectTo(r.Request.GetReferer())
+// RedirectBack redirects client back to referer.
+// The optional parameter <code> specifies the http status code for redirecting,
+// which commonly can be 301 or 302. It's 302 in default.
+func (r *Response) RedirectBack(code ...int) {
+	r.RedirectTo(r.Request.GetReferer(), code...)
 }
 
 // BufferString returns the buffered content as []byte.
diff --git a/net/ghttp/ghttp_server_config_static.go b/net/ghttp/ghttp_server_config_static.go
index aad01bdb8..36c482b49 100644
--- a/net/ghttp/ghttp_server_config_static.go
+++ b/net/ghttp/ghttp_server_config_static.go
@@ -26,9 +26,14 @@ type staticPathItem struct {
 	path   string // The static path.
 }
 
-// SetIndexFiles sets the index files fro server.
-func (s *Server) SetIndexFiles(index []string) {
-	s.config.IndexFiles = index
+// SetIndexFiles sets the index files for server.
+func (s *Server) SetIndexFiles(indexFiles []string) {
+	s.config.IndexFiles = indexFiles
+}
+
+// GetIndexFiles retrieves and returns the index files from server.
+func (s *Server) GetIndexFiles() []string {
+	return s.config.IndexFiles
 }
 
 // SetIndexFolder enables/disables listing the sub-files if requesting a directory.