事件响应的优先级、stopProgapation禁止下层组件响应

        if("touches" in cc.sys.capabilities){
            cc.eventManager.addListener({event: cc.EventListener.TOUCH_ONE_BY_ONE, onTouchBegan: function(){
                trace("func1");
                return true;
            }}, this.child1);
            cc.eventManager.addListener({event: cc.EventListener.TOUCH_ONE_BY_ONE, onTouchBegan: function(touch,event){
                trace("func2");     //按顺序执行，先func2，再func3
                return true;
            }}, this.child2);
            cc.eventManager.addListener({event: cc.EventListener.TOUCH_ONE_BY_ONE, onTouchBegan: function(touch,event){
                trace("func3");
                event.stopPropagation();
                return true;
            }}, this.child2);
        }else{
            cc.eventManager.addListener({event: cc.EventListener.MOUSE, onMouseDown: function(){
                trace("func1");
            }}, this.child1);
            cc.eventManager.addListener({event: cc.EventListener.MOUSE, onMouseDown: function(event){
                trace("func2");     //按顺序执行，先func2，再func3
            }}, this.child2);
            cc.eventManager.addListener({event: cc.EventListener.MOUSE, onMouseDown: function(event){
                trace("func3");
                event.stopPropagation();
            }}, this.child2);
        }