diff --git a/qyweixin/app_approve.go b/qyweixin/app_approve.go
index 48af83f..e70927a 100644
--- a/qyweixin/app_approve.go
+++ b/qyweixin/app_approve.go
@@ -157,7 +157,9 @@ func (d *ApproveDetail) GetData() map[string]string {
 		} else if content.Control == "Money" {
 			value = content.Value.NewMoney
 		} else if content.Control == "File" {
-			value = content.Value.Files[0].FileId
+			if len(content.Value.Files) > 0 {
+				value = content.Value.Files[0].FileId
+			}
 		} else if content.Control == "Vacation" { //请假 ： 请假类型,开始时间,结束时间,请假时长
 			tp := content.Value.Vacation.Selector.Options[0].Value[0].Text
 			value = tp + "," + cast.ToString(content.Value.Vacation.Attendance.DateRange.NewBegin) +