diff --git a/logs/conn.go b/logs/conn.go
index 2a29688a..5d78467b 100644
--- a/logs/conn.go
+++ b/logs/conn.go
@@ -64,8 +64,7 @@ func (c *connWriter) WriteMsg(when time.Time, msg string, level int) error {
 		defer c.innerWriter.Close()
 	}
 
-	logTimeStr := formatLogTime(when)
-	msg = logTimeStr + msg
+	msg = formatLogTime(when) + msg
 
 	c.lg.Println(msg)
 	return nil
diff --git a/logs/console.go b/logs/console.go
index 48d1e5b2..e6da0df9 100644
--- a/logs/console.go
+++ b/logs/console.go
@@ -74,10 +74,7 @@ func (c *consoleWriter) WriteMsg(when time.Time, msg string, level int) error {
 	if level > c.Level {
 		return nil
 	}
-
-	logTimeStr := formatLogTime(when)
-	msg = logTimeStr + msg
-
+	msg = formatLogTime(when) + msg
 	if goos := runtime.GOOS; goos == "windows" {
 		c.lg.Println(msg)
 		return nil
diff --git a/logs/file.go b/logs/file.go
index 16bf29c2..f277317c 100644
--- a/logs/file.go
+++ b/logs/file.go
@@ -121,8 +121,7 @@ func (w *fileLogWriter) WriteMsg(when time.Time, msg string, level int) error {
 	//2016/01/12 21:34:33
 	// now := time.Now()
 	d := when.Day()
-	logTimeStr := formatLogTime(when)
-	msg = logTimeStr + msg + "\n"
+	msg = formatLogTime(when) + msg + "\n"
 
 	if w.Rotate {
 		if w.needRotate(len(msg), d) {