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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:由Kenp&Esther情侣档合作的《泰剧一喵定情》讲述梦想成为爱情小说家的女孩因为没谈过恋爱而无法下笔，直到她遇到一只可爱的喵咪，带着她遇到了帅气的男生后发生的爱情故事！这部剧将在10月20号播出，中泰同步，腾讯独家播出！弗洛姆·约翰·兰顿公爵和他的妻子，他们的孩子在分娩过程中并发症后出生，一个专横的保姆、保姆和侍从来到蒙塔古大厅参加费利西亚夫人的圣诞舞会。晚上，婴儿从婴儿床上被带走。探长马洛里怀疑，当他的秘密妻子到来时，贴身男仆有一份内部工作，而布朗则对未婚母亲在家里生孩子更感兴趣。麦卡锡夫人在教区的压力下提供适合公爵的圣诞服务，从她在忏悔室发现的流浪汉那里得到了意想不到的帮助。[Transportation] Bus: Take Route 3, Route 4, Route 6, Route 14, Route 19, Route 25, Route 26, Route 32 and Route 47 to get off the "Fu Confucian Temple" station.从有印象以来，‘小庄’就一直认为自己是个帅哥，这份认知并非无凭无据。因为从小到大，不管是亲戚长辈或是小吃摊的老板娘、填问卷的美眉、兜售黄牛票的大婶、借抄报告的同学，每个人总是一脸诚挚地唤他一声(帅哥)，所以他真觉得自己就是帅哥……之前一直忧心忡忡的是北会稽郡的桓楚。