node.on ( type, callback, [target ], useCapture )
useCapture:“When set to true, the capture argument prevents callback from being invoked when the event’s eventPhase attribute value is BUBBLING_PHASE. When false, callback will NOT be invoked when event’s eventPhase attribute value is CAPTURING_PHASE. Either way, callback will be invoked when event’s eventPhase attribute value is AT_TARGET.”
最后一个参数useCapture 到底是什么意思?我试验了一下可以影响节点的触摸事件顺序,求教
还有就是event中这些阶段是什么意思
啥是 捕获阶段,目标阶段,冒泡阶段……求大神解释