diff --git a/nreflect/convert.go b/nreflect/convert.go
index a5e4514..2100c1f 100644
--- a/nreflect/convert.go
+++ b/nreflect/convert.go
@@ -10,37 +10,6 @@ import (
 	"strconv"
 )
 
-type ConvertFn func(t reflect.Type, value reflect.Value) string
-
-// StructToStrMap convert struct to string map, json tag
-func StructToStrMap(v any, fn ConvertFn) map[string]string {
-	// 返回 key-value
-	ret := make(map[string]string)
-	rType := reflect.TypeOf(v)
-	rValue := reflect.ValueOf(v)
-
-	rValue = Indirect(rValue)
-	if rType.Kind() == reflect.Ptr {
-		rType = rType.Elem()
-	}
-
-	for i := 0; i < rType.NumField(); i++ {
-		rField := rType.Field(i)
-		jsonTag := rField.Tag.Get("json")
-		if jsonTag == "" || jsonTag == "-" {
-			continue
-		}
-		//rField.Type
-		if fn == nil {
-			fn = func(t reflect.Type, value reflect.Value) string {
-				return String(value)
-			}
-		}
-		ret[jsonTag] = fn(rField.Type, rValue.Field(i))
-	}
-	return ret
-}
-
 // BaseTypeVal convert custom type or intX,uintX,floatX to generic base type.
 //
 //	intX/unitX 	=> int64