diff --git a/constant/constant.go b/constant/constant.go
index c33c282..7c33706 100644
--- a/constant/constant.go
+++ b/constant/constant.go
@@ -62,6 +62,8 @@ const (
 
 	MethodPost = "POST"
 	MethodGet  = "GET"
+
+	RetryTimes = 3
 )
 
 type Weekday int
diff --git a/strings/string.go b/strings/string.go
index c4babf1..a0b455f 100644
--- a/strings/string.go
+++ b/strings/string.go
@@ -7,6 +7,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"fmt"
+	"github.com/shootz-developer/gtool/constant"
 	"math"
 	"math/big"
 	"math/rand"
@@ -177,3 +178,13 @@ func Similarity(s1 string, s2 string) float64 {
 	sim := strsim.Compare(s1, s2)
 	return sim
 }
+
+// StringFilter 字符串过滤，将1,2,3,4,5 -> '1','2','3','4','5'
+func StringFilter(ids string) string {
+	splitString := strings.Split(ids, constant.Comma)
+	videos := fmt.Sprintf("'%s'", splitString[0])
+	for i := 1; i < len(splitString); i++ {
+		videos = fmt.Sprintf("%s,'%s'", videos, splitString[i])
+	}
+	return videos
+}