diff --git a/json/structConvert.go b/json/structConvert.go
deleted file mode 100644
index 62393e2..0000000
--- a/json/structConvert.go
+++ /dev/null
@@ -1,54 +0,0 @@
-package json
-
-import (
-	"reflect"
-
-	"github.com/charlienet/go-mixed/bytesconv"
-)
-
-// 结构转换为json字符串
-func StructToJsonIndent(obj any) string {
-	b, _ := MarshalIndent(obj, "", "  ")
-	return bytesconv.BytesToString(b)
-}
-
-// 结构转换为json字符串
-func StructToJson(obj any) string {
-	b, _ := Marshal(obj)
-	return bytesconv.BytesToString(b)
-}
-
-func StructToMap(obj any) map[string]any {
-	typ := reflect.TypeOf(obj)
-
-	kind := typ.Kind()
-	if kind == reflect.Map {
-		return toMap(obj)
-	}
-
-	val := reflect.ValueOf(obj)
-
-	m := make(map[string]any)
-	for i := 0; i < val.NumField(); i++ {
-		m[typ.Field(i).Name] = val.Field(i).Interface()
-	}
-
-	return m
-}
-
-func StructToMapViaJson(obj any) map[string]any {
-	m := make(map[string]any)
-
-	j, _ := Marshal(obj)
-	_ = Unmarshal(j, &m)
-
-	return m
-}
-
-func toMap(obj any) map[string]any {
-	if h, ok := obj.(map[string]any); ok {
-		return h
-	}
-
-	return StructToMapViaJson(obj)
-}
diff --git a/json/struct_test.go b/json/struct_test.go
new file mode 100644
index 0000000..4869706
--- /dev/null
+++ b/json/struct_test.go
@@ -0,0 +1,18 @@
+package json
+
+import (
+	"testing"
+)
+
+func TestMapModify(t *testing.T) {
+	m := map[string]string{
+		"A": "A",
+	}
+
+	modify(m)
+	t.Log(m)
+}
+
+func modify(m map[string]string) {
+	m["B"] = "bbb"
+}
diff --git a/structs/struct_to_map.go b/structs/struct_to_map.go
index 84c2baa..4558e40 100644
--- a/structs/struct_to_map.go
+++ b/structs/struct_to_map.go
@@ -28,7 +28,7 @@ func ToMap(o any, opts ...optionFunc) map[string]any {
 			continue
 		}
 
-		m[field.name] = source.Interface()
+		m[opt.NameFunc(field.name)] = source.Interface()
 	}
 
 	return m
diff --git a/structs/struct_to_map_test.go b/structs/struct_to_map_test.go
index 9c67249..5da1038 100644
--- a/structs/struct_to_map_test.go
+++ b/structs/struct_to_map_test.go
@@ -8,12 +8,12 @@ import (
 
 func TestStructToMap(t *testing.T) {
 	o := struct {
-		Abc       string
+		UserName  string
 		InTagName string `json:"in_tag_name,omitempty"`
 		KeepEmpty int
 		OmitEmpty int `json:",omitempty"`
 	}{
-		Abc:       "测试字段",
+		UserName:  "测试字段",
 		InTagName: "具体名称",
 		KeepEmpty: 0,
 		OmitEmpty: 0,
@@ -22,4 +22,6 @@ func TestStructToMap(t *testing.T) {
 	t.Log(structs.ToMap(o))
 	t.Log(structs.ToMap(o, structs.IgnoreEmpty()))
 	t.Log(structs.ToMap(o, structs.Omitempty()))
+	t.Log(structs.ToMap(o, structs.Lcfirst()))
+	t.Log(structs.ToMap(o, structs.Camel2Case()))
 }
diff --git a/structs/utils.go b/structs/utils.go
index 86b5e6e..d41e87c 100644
--- a/structs/utils.go
+++ b/structs/utils.go
@@ -2,11 +2,14 @@ package structs
 
 import (
 	"reflect"
+
+	"github.com/charlienet/go-mixed/json"
 )
 
 type optionFunc func(*option)
 
 type option struct {
+	NameFunc    func(string) string
 	IgnoreEmpty bool
 	DeepCopy    bool
 	Omitempty   bool
@@ -30,8 +33,23 @@ func Omitempty() optionFunc {
 	}
 }
 
+func Lcfirst() optionFunc {
+	return func(o *option) {
+		o.NameFunc = json.Lcfirst
+	}
+}
+
+func Camel2Case() optionFunc {
+	return func(o *option) {
+		o.NameFunc = json.Camel2Case
+	}
+}
+
 func createOptions(opts []optionFunc) *option {
-	o := &option{}
+	o := &option{
+		NameFunc: func(s string) string { return s },
+	}
+
 	for _, f := range opts {
 		f(o)
 	}
@@ -42,4 +60,3 @@ func createOptions(opts []optionFunc) *option {
 func shouldIgnore(v reflect.Value, ignoreEmpty bool) bool {
 	return ignoreEmpty && v.IsZero()
 }
-