diff --git a/single_file_tests/json.go b/single_file_tests/json.go
index e29ea45..f604c87 100644
--- a/single_file_tests/json.go
+++ b/single_file_tests/json.go
@@ -19,25 +19,24 @@ type Test struct {
 	Bool      bool    `json:"bool"`
 	BoolInStr bool    `json:"bool_in_str,string"`
 	Long      int64   `json:"long"`
-	Long2     TheLong `json:"long2"`
+	Long2     *TheLong `json:"long2"`
 }
 
 // https://www.cnblogs.com/yorkyang/p/8990570.html
 func (l *TheLong) MarshalJSON() (data []byte, err error) {
-	fmt.Println("------")//??
     if l != nil {
-        data = []byte(strconv.FormatInt(l.Value, 10))
+        data = []byte("\""+strconv.FormatInt(l.Value, 10) + "\"")
     }
     return
 }
-func (l *TheLong) UnmarshalJSON(data []byte) error {
-	v, err := strconv.ParseInt(string(data), 10, 64)
-	if err != nil {
-		return err
-	}
-	l.Value = v
-    return nil
-}
+// func (l *TheLong) UnmarshalJSON(data []byte) error {
+// 	v, err := strconv.ParseInt(string(data), 10, 64)
+// 	if err != nil {
+// 		return err
+// 	}
+// 	l.Value = v
+//     return nil
+// }
  
 
 func main() {
@@ -50,7 +49,7 @@ func main() {
 		Bool: true,
 		BoolInStr: true,
 		Long: 342438204823084023,
-		Long2: TheLong { Value: 1111111111111111111 },
+		Long2: &TheLong { Value: 342438204823084023 },
 	}
 	s, err := json.Marshal(t)
 	if err != nil {