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小镇里面杂事多 小镇总理故事多 郭寿阳温情演绎From the above command class code, we can see that any operation has an execute method to perform the operation. The above code uses traditional object-oriented programming to implement the command mode. The procedural request call of the command mode is encapsulated in the execute method of the command object. Have we found the above writing code a little cumbersome? We can do this using the callback functions in javascript, In object-oriented, The receiver of the command mode is saved as an attribute of the command object, and the command execution operation is agreed to call the command.execute method. However, if we use the callback function, then the receiver is closed in the environment where the callback function is generated, and the execution operation will be simpler. Only the callback function can be executed. Let's look at the following code:当奥托家族迎来新纪元时，凯蒂和格雷格做出了出售家庭小货车的情感决定；丹尼尔遭遇挫折，迫使他重新思考如何实现自己的目标。33岁的林淼在没有共享单车，没有扫码付费，更别提外卖软件的时代里，意外邂运了焦阳。两人从初见时的相互嫌弃，到后来职场井肩作战的上下级，林 淼每时每刻都在打开焦阳新世界的大门，以至于废柴小总裁心中那些不切实际的商业计划竟然都有了一一想要落地实现的想法。State machines also have a wide range of uses in game development, especially the logic writing of game AI. The main characters in the game have various states such as walking, attacking, defending, falling and jumping. These states are both interrelated and constrained. For example, if attacked during walking, it will switch from walking state to falling state. In the state of falling, it can neither attack nor defend. Similarly, you cannot switch to the defensive state during the jump, but you can attack. This kind of scenario is very suitable to be described by state machine. The code is as follows:车夫回想着这段往事，心驰神往间，驾车走神，回过神来才见路上正有一骑驴的人，这就要撞上，他连忙勒缰转弯，骑驴的人也同时惊慌外掰，驴子受惊，人未坐稳，直接被甩下了毛驴摔倒在地。