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The above is just a synchronous chain of responsibilities, We let each node function return a specific value "nextSuccessor" synchronously, To indicate whether to pass the request to the next node, we will often encounter AJAX asynchronous requests in our development. After the request is successful, we need to do something so-and-so. At this time, if we apply the above synchronous request again, it will not take effect. Let's understand and use asynchronous responsibility chain to solve this problem. We add another prototype method Chain.prototype.next to the Chain class to manually pass the request to the next node in the responsibility chain.这次的宣传，就麻烦吕老哥了。哥哥在哪里呢？淼淼，你就当这狼要吃了葫芦哥哥，你一定不能饶了它。Later, an optimized form evolved, namely content-based e-commerce. Instead of selling goods directly, the stage of content consumption is increased before purchase, and the effect is consumption decision. In other words, by planning the content that users may be interested in, sufficient purchase reasons are provided for users to place orders, thus improving product stickiness, re-purchase or transformation.6. Copy down your favorite sentences.(a) Strictly implement the medical security management regulations and agreements;3. Pass to child View----> Call super.dispatchTouchEvent () The default implementation will call onInterceptTouchEvent in onInterceptTouchEvent return false, and the event will be passed to the subclass.