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但是终究没有说出一句完整的话。都市生活剧怀有滑冰梦想的冬冬和爸爸生活在一起，他需要一个新冰鞋和伙伴们去参加冰雪节的冰雪娃娃大赛，经济情况不好的爸爸没有给他买新冰鞋，父子发生争执，冬冬为此赌气出走，在外过程中他遇到了两个小偷，他的勇敢善良最终感化了他们，他们和冬冬还有他的伙伴们一起打败了一个破坏冰雪节活动的国际大盗，而冬冬的这次曲折冒险经历，也让他感受到了爸爸的不易而改变了对爸爸的态度，他重新拥抱了亲情，而冬冬和他的伙伴们也得到了一种成长。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.二十年代，还是军阀割据的时候。震鸣回来了，一声枪响，揭开了这个恩爱情仇的故事。