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Class I Physical Examination Certificate, Civil Aviation Administration Record, Business License, Model Endorsement, ICAO4From 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:FOX已续订《识骨寻踪》第11季。In fact, sleeping with you is the same as being slept by you, nothing more than但是在最后的第七次冒险中遇到了神秘的巨大生物，被荒废的城市世界放飞了！船上忽然热闹喜庆起来，男男女女都笑逐颜开，簇拥着新诞生的苞谷小少爷，不停凑趣笑闹。　　新婚之夜，雪珂冒险把一切事实都告诉了至刚，她相信他是个懂得爱情的人。然而婚前早就爱慕雪珂已久的他无论如何也不能接受这个事实。新婚之夜雪珂自断手指以求保住清白，年轻的至刚被这个事实和雪珂对亚蒙的爱所震撼，嫉妒冲昏了他的头脑，三天后他还是把雪珂占为己有。