diff --git a/utils/typeconv.go b/utils/typeconv.go
index 5d3889f2..fa85e542 100644
--- a/utils/typeconv.go
+++ b/utils/typeconv.go
@@ -15,8 +15,11 @@ import (
 	"git.rosy.net.cn/baseapi"
 	"github.com/gazeboxu/mapstructure"
 	"github.com/gazeboxu/structs"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json1 = jsoniter.ConfigCompatibleWithStandardLibrary
+
 const MaxTimeSecond = 9573800254 // 正常最大的秒数
 
 var (
@@ -562,6 +565,18 @@ func Str2Int(s string) (i int) {
 	return int(Str2Int64WithDefault(s, 0))
 }
 
+//func String2Int64Slice(s string) []int64 {
+//	res := make([]int64, 0)
+//	if len(s) == 0 {
+//		return res
+//	}
+//	if err := json1.DecoderOf(s, &res); err != nil {
+//		log.Warnf("Error to deserialize string of []int64:%s, err=%v", s, err)
+//		return res
+//	}
+//	return res
+//}
+
 func Float64TwoInt(f float64) (i int) {
 	return int(Float64TwoInt64(f))
 }