Event()对象的构造方法

 

Event()对象的构造方法：

       Event(type:String,bubbles:Boolean=false,cancelable:Boolean=false)

              后两个参数是可选的，

bubbles:是否打开冒泡功能，cancelable:处理事件的默认行为是否可以停止

声明  var newEvent:Event=new Event(“newEvent”);

      var newEvent:Event=new Event(“newEvent”,true);

      var newEvent:Event=new Event(“newEvent”,false,true);