Flash AS2 事件处理机制

Flash AS2 事件处理机制(28)         this.type = type;
    }
    //----------------------------------------
    public function toString():String
    {
        var str:String = "";
        for (var i:String in this) {
            if (this[i] != undefined) {
                str += i + "=" + this[i] + " ";
            }
        }
        return "[" + this.className + " " + str.slice(0,str.length - 1) + "]";
    }
    //----------------------------------------
}
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此类包含下面内容:
1.事件的常数名.如:

    public static var COMPLETE:String = "complete";
    ...
2.基本的属性.如:

    public var type:String;
    ...
3.className 属性.如:

private var className:String = "Event";
4.构造函数.如:

    public function Event(type:String)
    {
        this.type = type;
    }
5.toString() 方法.如:

    public function toString():String
    {
        var str:String = "";
        for (var i:String in this) {
            if (this[i] != undefined) {
                str += i + "=" + this[i] + " ";