Merge pull request '修复#2304问题' (#2309) from fix-2304 into V20220616

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/2309
Reviewed-by: ychao_1983 <ychao_1983@sina.com>

routers/repo/modelarts.go

@@ -1407,7 +1407,7 @@ func readDir(dirname string) ([]os.FileInfo, error) {
 		return nil, err
 	}
 
-	list, err := f.Readdir(100)
+	list, err := f.Readdir(0)
 	f.Close()
 	if err != nil {
 		//todo: can not upload empty folder