diff --git a/src/mysql/dbmysql.go b/src/mysql/dbmysql.go
index 1b00d1d..47acc6d 100644
--- a/src/mysql/dbmysql.go
+++ b/src/mysql/dbmysql.go
@@ -100,9 +100,13 @@ func QueryAllData() error{
 	//先打开文件
 	filename := "./data.txt"
 	var f *os.File
+	var err1 error
 //	var err1 error
 	if checkFileIsExist(filename) { //如果文件存在
-		f, _ = os.OpenFile(filename, os.O_APPEND, 0666) //打开文件
+		f, err1 = os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, os.ModeAppend) //打开文件
+		if err1 != nil {
+			logger.Error("QueryAllData OpenFile failed err=%v",err1)
+		}
 	} else {
 		f, _ = os.Create(filename) //创建文件
 	}
@@ -137,6 +141,7 @@ func QueryAllData() error{
 			_,err = f.WriteString(str)
 			if err != nil {
 				logger.Error("WRITETOFILEFAILED ERR=%v",err)
+				return err
 			}
 			//fmt.Fprintln(w, str)
 			//w.Flush()
--
libgit2 0.21.0