diff --git a/app.go b/app.go
index da6b5f1..b0217c6 100644
--- a/app.go
+++ b/app.go
@@ -58,8 +58,8 @@ func (this *app) init(userApp UserApp) {
 	this.userApp = userApp
 	this.nowTime = time.Now()
 	atomic.StoreInt64(&this.nowUnixNano, this.nowTime.UnixNano())
-	_Timer = &Timer{}
-	_Timer.init()
+	_timer = &Timer{}
+	_timer.init()
 	_SysLog = new(SysLog_)
 	_SysLog.Init()
 	_TgLog = new(TGLog_)
@@ -87,8 +87,8 @@ func (this *app) init(userApp UserApp) {
 
 func (this *app) unInit() {
 	this.chGoLoopTimerExit <- 1
-	_Timer.unInit()
-	_Timer = nil
+	_timer.unInit()
+	_timer = nil
 	this.userApp.UnInit()
 }
 
@@ -98,7 +98,7 @@ func (this *app) run() {
 		atomic.StoreInt64(&this.nowUnixNano, this.nowTime.UnixNano())
 
 		beginTick := q5.GetTickCount()
-		_Timer.update()
+		_timer.update()
 		this.dispatchIMMsg()
 		this.userApp.Update()
 		this.schedule()
diff --git a/global.go b/export.go
similarity index 90%
rename from global.go
rename to export.go
index 1c17c5a..e9fd081 100644
--- a/global.go
+++ b/export.go
@@ -1,12 +1,12 @@
 package f5
 
 var _app *app
-var _Timer *Timer
+var _timer *Timer
 var _SysLog *SysLog_
 var _TgLog *TGLog_
 
 func GetTimer() *Timer {
-	return _Timer
+	return _timer
 }
 
 func SysLog() *SysLog_ {