引擎版本3.11
场景层有一组按钮，节点优先级是默认的
场景层添加的弹出层的节点优先级是4
弹出层添加的事件监听如下
var listener = cc.EventListener.create({
event:cc.EventListener.TOUCH_ALL_AT_ONCE,
onTouchesBegan:this.onTouchesBegan,
onTouchesMoved:this.onTouchesMoved,
onTouchesEnded:this.onTouchesEnded,
});
cc.eventManager.addListener(listener, this);
onTouchesBegan设置了event.stopProagation();屏蔽了事件传递
求大神解惑，如何才能禁止多点触摸向下传递