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In the above code, we use three functions, order500, order200, orderNormal to handle its own business logic, If the current own function cannot handle things, We pass it to the following function to handle it. By analogy, Until there is a function that can handle him, Otherwise, the responsibility chain mode will leave the chain directly, telling that it cannot be processed and throwing an error prompt. Although the above code can be used as the responsibility chain mode, we can see from the above code that the Order500 function depends on functions such as Order200, so there must be this function, which also violates the open-closed principle in object-oriented. Let's continue to understand writing flexible and detachable responsibility chain nodes.The code is very simple. When x==3, intercept the event, which is the fourth event in the sequence of events. The log is as follows:　　第6集，三浦翔平饰演原是乐队队员的医生，笠原秀幸饰演寿司匠人，丸山智己饰演在人事部工作的上班族，山口纱弥加饰演一名公司职员。周渔（巩俐 饰）在小镇上从事陶艺工作，美丽善良的她遇上诗人陈清（梁家辉 饰）后，对他的眷恋油然而生。尽管陈清在另一镇上做图书管理员，生活清贫，爱情的力量还是让周渔甘心劳苦，来往于两地只为照顾陈清。慢慢地，她变得有点疲倦。翘儿在旁骂道：臭不要脸。斋藤工饰演身份不明、没有记忆、不知来自何处的神秘全裸帅哥海明威。白石麻衣饰演新闻记者新谷咏美，她原本为了抢独家报道而采访海明威，却渐渐被他吸引……When the coil is energized, the iron core attracts the armature and the support plate to move down, and the contact points are turned on or off instantly. The piston rod and the lever slowly decrease due to the influence of the blocking nylon. After a certain period of time, the piston rod decreases to a certain position, and the delayed action contact is pushed by the lever to act, which is in an open state, while the moving contact is closed. The delay time of the relay is the time when the coil is energized until the delay contact completes its action. When the coil is powered off, the relay is restored by the recovery action of the spring.