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Remember when I was working on the front end, That is, the first company that has just graduated, It is a company that does outsourcing projects. The company generally outsources Taobao activity pages and Tencent's game pages, We should have called it cutting the front end of the page at that time. Do some html and css work, So when I was doing Tencent's game page, Often help them make static pages, For example, put a few buttons on the page, We just helped Tencent games to fix the style according to the design draft. For example, the buttons on the page and so on, For example, how to operate the specified buttons, What happens when the button is clicked, We don't know, We don't know what their business is. Of course, what we know will definitely be a click event. We don't know exactly what business to deal with. Here we can use command mode to deal with it: after clicking the button, we must send requests to some objects responsible for specific behaviors, which are the recipients of the requests. However, at present we do not know what the receiver is or what the receiver will do. At this time, we can use command mode to eliminate the code coupling relationship between the sender and the receiver.黛比·瑞恩(《保姆杰茜》)主演Netflix剧集《永不满足》宣布续订第2季。南瓜三个不停提问。刚才还说，哥哥姐姐们让你记住家里的事，你又那么贪财，要是拿了黑匣子，怎会不记得？大苞谷怒道：我又不是神仙，什么都记得。開かずの踏切 石田純一 野村真美作为美国FBI最优秀的警犬，特警11号和它的训导员多年来破获了多起大案，立下了汗马功劳。这一次又是在特警11号的协助下侦破了黑帮头目桑尼的贩毒案。桑尼对特警11号恨之入骨，他发誓一定要让特警11号从这个世界上消失。张居正不假思索问道：不要隐瞒，元敬还有多少私财可贡？合计白银……不足千两。