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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:工作前景黯淡,家庭责任繁重,感情生活又多舛,这名街头舞者实在是蜡烛三头烧,但她发觉自己或许可以凭藉着舞艺,脱离这个德尔班劳工阶级小镇。这老家伙缺点多，但优点也不少，这么大年纪了，还不算老糊涂。影片《Born to be Blue》是关于知名爵士乐手Chet Baker的传记，主要集中讲述他70年代重回乐坛的一段故事。　　几年过去了，海燕海君已经成了十一二岁的中学生，出落得亭亭玉立，能歌善舞，是学校里的两枝花，而金花一天到晚推车买鱼丸，辛苦操持家务，海燕根据童年的懵懂印象，认为是妈妈逼走了父亲，所以处处和母亲作对，反而是海君体谅母亲，给母亲帮助。32. The functional departments of the Company's organs have changed their working ideas and work style. In the future, Relevant departments can make one phone call clear and do not make two calls, Can a notification contain not many notifications, Can coordinate at a meeting and not open twice, Can personally go down to the front line to collect materials, Relevant issues do not call for materials. No matter who does anything, they should pay attention to the procedures and rules. They should not stick to the end, add chaos to the front line, really reduce the burden of front-line work, really establish the idea of serving the front line, and really let front-line personnel concentrate on the management work and complete the lifeblood sales work of the company.詹姆斯·基内（塔伦·埃哲顿 饰）出生在芝加哥，是一名警察的儿子。他曾是一名出色的橄榄球球手，并朝着职业道路发展。而他犯的错使他被判10年监禁，无假释机会。检察官给他一个将功补过的机会，但风险很高。有一个叫拉里·霍尔（保罗·沃尔特·豪泽 饰）的人绑架和谋杀了一个15岁女孩，而这个女孩仅仅是他过往杀害的19名女性之一，由于证据不足，霍尔或将被释放，基内的任务就是在狱中让霍尔承认他的谋杀行为。