diff --git a/Easy2D/Tool/ETimer.cpp b/Easy2D/Tool/ETimer.cpp
index d47d43ec..51732dd5 100644
--- a/Easy2D/Tool/ETimer.cpp
+++ b/Easy2D/Tool/ETimer.cpp
@@ -79,6 +79,11 @@ void e2d::ETimer::setRepeatTimes(int repeatTimes)
 	m_nRepeatTimes = repeatTimes;
 }
 
+void e2d::ETimer::setRunAtOnce(bool bAtOnce)
+{
+	m_bAtOnce = bAtOnce;
+}
+
 void e2d::ETimer::bindWith(EScene * pParentScene)
 {
 	ETimerManager::bindTimer(this, pParentScene);
diff --git a/Easy2D/etools.h b/Easy2D/etools.h
index 198d1c88..966b6a4a 100644
--- a/Easy2D/etools.h
+++ b/Easy2D/etools.h
@@ -66,7 +66,12 @@ public:
 
 	// 设置定时器重复执行次数
 	void setRepeatTimes(
-		int repeatTimes
+		int nRepeatTimes
+	);
+
+	// 设置定时器在绑定后立即执行一次
+	virtual void setRunAtOnce(
+		bool bAtOnce
 	);
 
 	// 绑定定时器到场景