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……离开酒店，陈启步行在路上。清晨，护林员吴忧和强叔一起在巡山过程中发现一具由熊刨出来的尸体，死者是吴忧的初恋覃洁。因为吴忧和覃洁两人在死前见过面，他害怕被当成嫌疑人，从而走上了漫漫逃亡和寻找真凶之路……At that time, The helmets worn by our army are GK80 bulletproof helmets. After understanding, I am sure that Zhang Xiaobo is wearing this model. The material used to make it is 232 bulletproof steel, which has excellent performance and has good protective effect on various high-speed flying hard objects such as fragments and rubble lifted by explosion. However, because it is a pure metal helmet, it does have the disadvantage of being sultry when fighting in hot conditions.他是这个家的长孙，最近长辈们整日嘀咕自己的亲事，只要留心的话，不可能不知道。However, under the circumstances at that time, I thought these things had little effect, because after we knocked them out, we began to gather in more quantities and launched attacks on positions from all directions. Judging from the form of attacks, they were quite organized and definitely beyond the reach of ordinary wild animals.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.