diff --git a/encoding/gjson/gjson_z_example_load_test.go b/encoding/gjson/gjson_z_example_load_test.go
index 84deb1fee..fe5e48fe7 100644
--- a/encoding/gjson/gjson_z_example_load_test.go
+++ b/encoding/gjson/gjson_z_example_load_test.go
@@ -13,11 +13,149 @@ import (
 	"github.com/gogf/gf/v2/encoding/gjson"
 )
 
-func Example_loadJson() {
+func ExampleLoad() {
 	jsonFilePath := gdebug.TestDataPath("json", "data1.json")
 	j, _ := gjson.Load(jsonFilePath)
 	fmt.Println(j.Get("name"))
 	fmt.Println(j.Get("score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadJson() {
+	jsonContent := `{"name":"john", "score":"100"}`
+	j, _ := gjson.LoadJson(jsonContent)
+	fmt.Println(j.Get("name"))
+	fmt.Println(j.Get("score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadXml() {
+	xmlContent := `<?xml version="1.0" encoding="UTF-8"?>
+	<base>
+		<name>john</name>
+		<score>100</score>
+	</base>`
+	j, _ := gjson.LoadXml(xmlContent)
+	fmt.Println(j.Get("base.name"))
+	fmt.Println(j.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadIni() {
+	iniContent := `
+	[base]
+	name = john
+	score = 100
+	`
+	j, _ := gjson.LoadIni(iniContent)
+	fmt.Println(j.Get("base.name"))
+	fmt.Println(j.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadYaml() {
+	yamlContent :=
+		`base:
+  name: john
+  score: 100`
+
+	j, _ := gjson.LoadYaml(yamlContent)
+	fmt.Println(j.Get("base.name"))
+	fmt.Println(j.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadToml() {
+	tomlContent :=
+		`[base]
+  name = "john"
+  score = 100`
+
+	j, _ := gjson.LoadToml(tomlContent)
+	fmt.Println(j.Get("base.name"))
+	fmt.Println(j.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+}
+
+func ExampleLoadContent() {
+	jsonContent := `{"name":"john", "score":"100"}`
+	xmlContent := `<?xml version="1.0" encoding="UTF-8"?>
+	<base>
+		<name>john</name>
+		<score>100</score>
+	</base>`
+
+	j, _ := gjson.LoadContent(jsonContent)
+	x, _ := gjson.LoadContent(xmlContent)
+
+	fmt.Println(j.Get("name"))
+	fmt.Println(j.Get("score"))
+	fmt.Println(x.Get("base.name"))
+	fmt.Println(x.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+	// john
+	// 100
+}
+
+func ExampleLoadContentType() {
+	jsonContent := `{"name":"john", "score":"100"}`
+	xmlContent := `<?xml version="1.0" encoding="UTF-8"?>
+	<base>
+		<name>john</name>
+		<score>100</score>
+	</base>`
+
+	j, _ := gjson.LoadContentType("json", jsonContent)
+	x, _ := gjson.LoadContentType("xml", xmlContent)
+
+	fmt.Println(j.Get("name"))
+	fmt.Println(j.Get("score"))
+	fmt.Println(x.Get("base.name"))
+	fmt.Println(x.Get("base.score"))
+
+	// Output:
+	// john
+	// 100
+	// john
+	// 100
+}
+
+func ExampleIsValidDataType() {
+	fmt.Println(gjson.IsValidDataType("json"))
+	fmt.Println(gjson.IsValidDataType("yml"))
+	fmt.Println(gjson.IsValidDataType("js"))
+	fmt.Println(gjson.IsValidDataType("mp4"))
+	fmt.Println(gjson.IsValidDataType("xsl"))
+	fmt.Println(gjson.IsValidDataType("txt"))
+
+	// Output:
+	// true
+	// true
+	// true
+	// false
+	// false
+	// false
 }
 
 func Example_loadXml() {
@@ -26,13 +164,3 @@ func Example_loadXml() {
 	fmt.Println(j.Get("doc.name"))
 	fmt.Println(j.Get("doc.score"))
 }
-
-func Example_loadContent() {
-	jsonContent := `{"name":"john", "score":"100"}`
-	j, _ := gjson.LoadContent(jsonContent)
-	fmt.Println(j.Get("name"))
-	fmt.Println(j.Get("score"))
-	// Output:
-	// john
-	// 100
-}
diff --git a/encoding/gjson/gjson_z_example_new_test.go b/encoding/gjson/gjson_z_example_new_test.go
index a077f280c..242ea95ab 100644
--- a/encoding/gjson/gjson_z_example_new_test.go
+++ b/encoding/gjson/gjson_z_example_new_test.go
@@ -12,67 +12,6 @@ import (
 	"github.com/gogf/gf/v2/encoding/gjson"
 )
 
-func Example_newFromJson() {
-	jsonContent := `{"name":"john", "score":"100"}`
-	j := gjson.New(jsonContent)
-	fmt.Println(j.Get("name"))
-	fmt.Println(j.Get("score"))
-	// Output:
-	// john
-	// 100
-}
-
-func Example_newFromXml() {
-	jsonContent := `<?xml version="1.0" encoding="UTF-8"?><doc><name>john</name><score>100</score></doc>`
-	j := gjson.New(jsonContent)
-	// Note that there's root node in the XML content.
-	fmt.Println(j.Get("doc.name"))
-	fmt.Println(j.Get("doc.score"))
-	// Output:
-	// john
-	// 100
-}
-
-func Example_newFromStruct() {
-	type Me struct {
-		Name  string `json:"name"`
-		Score int    `json:"score"`
-	}
-	me := Me{
-		Name:  "john",
-		Score: 100,
-	}
-	j := gjson.New(me)
-	fmt.Println(j.Get("name"))
-	fmt.Println(j.Get("score"))
-	// Output:
-	// john
-	// 100
-}
-
-func Example_newFromStructWithTag() {
-	type Me struct {
-		Name  string `tag:"name"`
-		Score int    `tag:"score"`
-		Title string
-	}
-	me := Me{
-		Name:  "john",
-		Score: 100,
-		Title: "engineer",
-	}
-	// The parameter `tags` specifies custom priority tags for struct conversion to map,
-	// multiple tags joined with char ','.
-	j := gjson.NewWithTag(me, "tag")
-	fmt.Println(j.Get("name"))
-	fmt.Println(j.Get("score"))
-	fmt.Println(j.Get("Title"))
-	// Output:
-	// john
-	// 100
-	// engineer
-}
-
 func ExampleNew() {
 	jsonContent := `{"name":"john", "score":"100"}`
 	j := gjson.New(jsonContent)
@@ -130,3 +69,31 @@ func ExampleNewWithOptions() {
 	// 100
 	// engineer
 }
+
+func Example_newFromXml() {
+	jsonContent := `<?xml version="1.0" encoding="UTF-8"?><doc><name>john</name><score>100</score></doc>`
+	j := gjson.New(jsonContent)
+	// Note that there's root node in the XML content.
+	fmt.Println(j.Get("doc.name"))
+	fmt.Println(j.Get("doc.score"))
+	// Output:
+	// john
+	// 100
+}
+
+func Example_newFromStruct() {
+	type Me struct {
+		Name  string `json:"name"`
+		Score int    `json:"score"`
+	}
+	me := Me{
+		Name:  "john",
+		Score: 100,
+	}
+	j := gjson.New(me)
+	fmt.Println(j.Get("name"))
+	fmt.Println(j.Get("score"))
+	// Output:
+	// john
+	// 100
+}
diff --git a/encoding/gjson/testdata/toml/data1.toml b/encoding/gjson/testdata/toml/data1.toml
new file mode 100644
index 000000000..21e3889c6
--- /dev/null
+++ b/encoding/gjson/testdata/toml/data1.toml
@@ -0,0 +1,3 @@
+[base]
+    name = "john"
+    score = 100
\ No newline at end of file
diff --git a/encoding/gjson/testdata/yaml/data1.yaml b/encoding/gjson/testdata/yaml/data1.yaml
new file mode 100644
index 000000000..5a428f55d
--- /dev/null
+++ b/encoding/gjson/testdata/yaml/data1.yaml
@@ -0,0 +1,3 @@
+base:
+  name: john
+  score: 100
\ No newline at end of file