diff --git a/stringx/string_example_test.go b/stringx/string_example_test.go
new file mode 100644
index 0000000..80ea91c
--- /dev/null
+++ b/stringx/string_example_test.go
@@ -0,0 +1,36 @@
+// Copyright 2021 ecodeclub
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package stringx_test
+
+import (
+	"fmt"
+
+	"github.com/ecodeclub/ekit/stringx"
+)
+
+func ExampleUnsafeToBytes() {
+	str := "hello"
+	val := stringx.UnsafeToBytes(str)
+	fmt.Println(len(val))
+	// Output:
+	// 5
+}
+
+func ExampleUnsafeToString() {
+	val := stringx.UnsafeToString([]byte("hello"))
+	fmt.Println(val)
+	// Output:
+	// hello
+}
diff --git a/value.go b/value.go
index e9c74bd..66108e1 100644
--- a/value.go
+++ b/value.go
@@ -15,6 +15,7 @@
 package ekit
 
 import (
+	"encoding/json"
 	"errors"
 	"reflect"
 	"strconv"
@@ -547,3 +548,12 @@ func (av AnyValue) BoolOrDefault(def bool) bool {
 	}
 	return val
 }
+
+// JSONScan 将 val 转化为一个对象
+func (av AnyValue) JSONScan(val any) error {
+	data, err := av.AsBytes()
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(data, val)
+}
diff --git a/value_test.go b/value_test.go
index dac9982..46cec5a 100644
--- a/value_test.go
+++ b/value_test.go
@@ -1828,3 +1828,45 @@ func TestAnyValue_AsString(t *testing.T) {
 		})
 	}
 }
+
+func TestAnyValue_JSONScan(t *testing.T) {
+	testCases := []struct {
+		name string
+
+		av AnyValue
+
+		wantUser User
+		wantErr  error
+	}{
+		{
+			name: "OK",
+			av: AnyValue{
+				Val: `{"name": "Tom"}`,
+			},
+			wantUser: User{
+				Name: "Tom",
+			},
+		},
+
+		{
+			name: "error",
+			av: AnyValue{
+				Err: errors.New("mock error"),
+			},
+			wantErr: errors.New("mock error"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			var u User
+			err := tc.av.JSONScan(&u)
+			assert.Equal(t, tc.wantErr, err)
+			assert.Equal(t, tc.wantUser, u)
+		})
+	}
+}
+
+type User struct {
+	Name string `json:"name"`
+}