程序启动时调用事件的顺序

执行顺序：

applicationComplete->creationComplete->initialize

测试代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:controls="com.fxcomponents.controls.*" 
backgroundColor="#444444" themeColor="#628CAF" backgroundGradientAlphas="{[0, 0]}" initialize="init1()"
applicationComplete="init3()" creationComplete="init2()">
<mx:Script>
   <![CDATA[ 
   import mx.controls.Alert;   
  
   private function init1(): void
    {
    Alert.show("init1");
    }
   
    private function init2(): void
    {
    Alert.show("init2");
    }
    public function init3(): void
    {
    Alert.show("init3");
    }

   ]]>
</mx:Script>
</mx:Application>