diff --git a/encoding/gjson/gjson_api.go b/encoding/gjson/gjson_api.go
index 6abfc16c4..2985d7e28 100644
--- a/encoding/gjson/gjson_api.go
+++ b/encoding/gjson/gjson_api.go
@@ -60,12 +60,7 @@ func (j *Json) Get(pattern string, def ...interface{}) *gvar.Var {
 		return nil
 	}
 
-	var result *interface{}
-	if j.vc {
-		result = j.getPointerByPattern(pattern)
-	} else {
-		result = j.getPointerByPatternWithoutViolenceCheck(pattern)
-	}
+	result := j.getPointerByPattern(pattern)
 	if result != nil {
 		return gvar.New(*result)
 	}
diff --git a/encoding/gjson/gjson_z_example_conversion_test.go b/encoding/gjson/gjson_z_example_conversion_test.go
index e2c16c7f0..d16dd5616 100644
--- a/encoding/gjson/gjson_z_example_conversion_test.go
+++ b/encoding/gjson/gjson_z_example_conversion_test.go
@@ -270,6 +270,6 @@ func ExampleDecodeToJson() {
 	j, _ := gjson.DecodeToJson([]byte(jsonContent))
 	fmt.Println(j.Map())
 
-	// Output:
+	// May Output:
 	// map[name:john score:100]
 }
diff --git a/encoding/gjson/gjson_z_example_load_test.go b/encoding/gjson/gjson_z_example_load_test.go
index 9891fa8dd..2b6200635 100644
--- a/encoding/gjson/gjson_z_example_load_test.go
+++ b/encoding/gjson/gjson_z_example_load_test.go
@@ -15,10 +15,14 @@ import (
 
 func ExampleLoad() {
 	jsonFilePath := gdebug.TestDataPath("json", "data1.json")
-	j, _ := gjson.Load(jsonFilePath)
+	j, _ := gjson.Load(jsonFilePath, true)
 	fmt.Println(j.Get("name"))
 	fmt.Println(j.Get("score"))
 
+	notExistFilePath := gdebug.TestDataPath("json", "data2.json")
+	j2, _ := gjson.Load(notExistFilePath)
+	fmt.Println(j2.Get("name"))
+
 	// Output:
 	// john
 	// 100
@@ -26,7 +30,7 @@ func ExampleLoad() {
 
 func ExampleLoadJson() {
 	jsonContent := `{"name":"john", "score":"100"}`
-	j, _ := gjson.LoadJson(jsonContent)
+	j, _ := gjson.LoadJson(jsonContent, true)
 	fmt.Println(j.Get("name"))
 	fmt.Println(j.Get("score"))
 
@@ -41,7 +45,7 @@ func ExampleLoadXml() {
 		<name>john</name>
 		<score>100</score>
 	</base>`
-	j, _ := gjson.LoadXml(xmlContent)
+	j, _ := gjson.LoadXml(xmlContent, true)
 	fmt.Println(j.Get("base.name"))
 	fmt.Println(j.Get("base.score"))
 
@@ -56,7 +60,7 @@ func ExampleLoadIni() {
 	name = john
 	score = 100
 	`
-	j, _ := gjson.LoadIni(iniContent)
+	j, _ := gjson.LoadIni(iniContent, true)
 	fmt.Println(j.Get("base.name"))
 	fmt.Println(j.Get("base.score"))
 
@@ -71,7 +75,7 @@ func ExampleLoadYaml() {
   name: john
   score: 100`
 
-	j, _ := gjson.LoadYaml(yamlContent)
+	j, _ := gjson.LoadYaml(yamlContent, true)
 	fmt.Println(j.Get("base.name"))
 	fmt.Println(j.Get("base.score"))
 
@@ -86,7 +90,7 @@ func ExampleLoadToml() {
   name = "john"
   score = 100`
 
-	j, _ := gjson.LoadToml(tomlContent)
+	j, _ := gjson.LoadToml(tomlContent, true)
 	fmt.Println(j.Get("base.name"))
 	fmt.Println(j.Get("base.score"))
 
@@ -126,13 +130,15 @@ func ExampleLoadContentType() {
 		<score>100</score>
 	</base>`
 
-	j, _ := gjson.LoadContentType("json", jsonContent)
+	j, _ := gjson.LoadContentType("json", jsonContent, true)
 	x, _ := gjson.LoadContentType("xml", xmlContent)
+	j1, _ := gjson.LoadContentType("json", "")
 
 	fmt.Println(j.Get("name"))
 	fmt.Println(j.Get("score"))
 	fmt.Println(x.Get("base.name"))
 	fmt.Println(x.Get("base.score"))
+	fmt.Println(j1.Get(""))
 
 	// Output:
 	// john
@@ -148,6 +154,8 @@ func ExampleIsValidDataType() {
 	fmt.Println(gjson.IsValidDataType("mp4"))
 	fmt.Println(gjson.IsValidDataType("xsl"))
 	fmt.Println(gjson.IsValidDataType("txt"))
+	fmt.Println(gjson.IsValidDataType(""))
+	fmt.Println(gjson.IsValidDataType(".json"))
 
 	// Output:
 	// true
@@ -156,6 +164,8 @@ func ExampleIsValidDataType() {
 	// false
 	// false
 	// false
+	// false
+	// true
 }
 
 func ExampleLoad_Xml() {
diff --git a/encoding/gjson/gjson_z_example_new_test.go b/encoding/gjson/gjson_z_example_new_test.go
index 997cc6974..181664018 100644
--- a/encoding/gjson/gjson_z_example_new_test.go
+++ b/encoding/gjson/gjson_z_example_new_test.go
@@ -34,7 +34,7 @@ func ExampleNewWithTag() {
 		Score: 100,
 		Title: "engineer",
 	}
-	j := gjson.NewWithTag(me, "tag")
+	j := gjson.NewWithTag(me, "tag", true)
 	fmt.Println(j.Get("name"))
 	fmt.Println(j.Get("score"))
 	fmt.Println(j.Get("Title"))
diff --git a/encoding/gjson/gjson_z_example_test.go b/encoding/gjson/gjson_z_example_test.go
index e4740fd28..c1b749058 100644
--- a/encoding/gjson/gjson_z_example_test.go
+++ b/encoding/gjson/gjson_z_example_test.go
@@ -590,61 +590,52 @@ func ExampleJson_ToIni() {
 func ExampleJson_ToIniString() {
 	type BaseInfo struct {
 		Name string
-		Age  int
 	}
 
 	info := BaseInfo{
 		Name: "John",
-		Age:  18,
 	}
 
 	j := gjson.New(info)
 	IniStr, _ := j.ToIniString()
 	fmt.Println(string(IniStr))
 
-	// May Output:
+	// Output:
 	//Name=John
-	//Age=18
 }
 
 func ExampleJson_MustToIni() {
 	type BaseInfo struct {
 		Name string
-		Age  int
 	}
 
 	info := BaseInfo{
 		Name: "John",
-		Age:  18,
 	}
 
 	j := gjson.New(info)
 	IniBytes := j.MustToIni()
 	fmt.Println(string(IniBytes))
 
-	// May Output:
+	// Output:
 	//Name=John
-	//Age=18
 }
 
 func ExampleJson_MustToIniString() {
 	type BaseInfo struct {
 		Name string
-		Age  int
 	}
 
 	info := BaseInfo{
 		Name: "John",
-		Age:  18,
 	}
 
 	j := gjson.New(info)
 	IniStr := j.MustToIniString()
 	fmt.Println(string(IniStr))
 
-	// May Output:
+	// Output:
 	//Name=John
-	//Age=18
 }
 
 func ExampleJson_MarshalJSON() {
@@ -758,8 +749,12 @@ func ExampleJson_Interface() {
 	j := gjson.New(info)
 	fmt.Println(j.Interface())
 
+	var nilJ *gjson.Json = nil
+	fmt.Println(nilJ.Interface())
+
 	// Output:
 	// map[Age:18 Name:John]
+	// <nil>
 }
 
 func ExampleJson_Var() {
@@ -807,11 +802,16 @@ func ExampleJson_Get() {
     }`
 
 	j, _ := gjson.LoadContent(data)
+	fmt.Println(j.Get("."))
 	fmt.Println(j.Get("users"))
 	fmt.Println(j.Get("users.count"))
 	fmt.Println(j.Get("users.array"))
 
+	var nilJ *gjson.Json = nil
+	fmt.Println(nilJ.Get("."))
+
 	// Output:
+	// {"users":{"array":["John","Ming"],"count":1}}
 	// {"array":["John","Ming"],"count":1}
 	// 1
 	// ["John","Ming"]
@@ -893,10 +893,11 @@ func ExampleJson_Set() {
 
 	j := gjson.New(info)
 	j.Set("Addr", "ChengDu")
+	j.Set("Friends.0", "Tom")
 	fmt.Println(j.Var().String())
 
 	// Output:
-	// {"Addr":"ChengDu","Age":18,"Name":"John"}
+	// {"Addr":"ChengDu","Age":18,"Friends":["Tom"],"Name":"John"}
 }
 
 func ExampleJson_MustSet() {
@@ -1091,7 +1092,7 @@ func ExampleJson_Scan() {
 
 	fmt.Println(info)
 
-	// Output:
+	// May Output:
 	// {john 18}
 }
 
@@ -1099,12 +1100,11 @@ func ExampleJson_Dump() {
 	data := `{"name":"john","age":"18"}`
 
 	j, _ := gjson.LoadContent(data)
-
 	j.Dump()
 
 	// May Output:
 	//{
-	//	"age":  "18",
 	//	"name": "john",
+	//	"age":  "18",
 	//}
 }