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Zhou Yumin你的梦想是什么？如果真心想要，就会成真。有一天，西门町天桥上出现一名魔术师，从此商场里每个角落都出现了神秘魔幻的变化。Luo Jian, Founder of Spark Thinking: "In the early days, the organization of the online thinking ability track, Basically, they have independently developed live broadcast systems, Therefore, the entry threshold for this track has been further raised. For entrepreneurs who still wish to enter this track, in addition to the construction of the teaching and research system and the polishing of the course content, it will also be essential to have a self-developed live broadcast system, because the use of a third-party live broadcast system will have a relatively poor user experience, which is not conducive to the perfection of their own courses and services, and the market competitiveness is relatively low. "说笑间。公元2110年，能源即将耗尽的地球满目疮痍，全人类面临灭顶之灾。千钧一发之际，一群勇敢的赛尔智能机器人登上赛尔号飞船，临危受命前往浩瀚宇宙寻找无尽能源。暮冬时节一辆大轿子车把小军从河北农村老家拉到了北京大轿子车德胜门附近停下来后裹着一件半新不旧军大衣小军按照信封上地址找到了表哥林大地做工建筑工地第一次出远门来到北京什么叫城市？小军这个才二十一岁单纯农村娃眼里城市就各种各样人和车尽管置身于北京这个国际化大都市街头小军觉得自己与这座城市那么格格不入但初到北京尤其工地上见到表哥林大地之后小军感觉还行也就对将来充满了信心和希望刚从农村出来小军忒实干活也特别卖力气从来不知道什么叫偷间耍滑不仅如此小军还牢记出门时奶奶嘱咐出门外勤洗勤换所以尽管建筑工地上干一天活下来衣服少有干净地方但小军还坚持隔一两天就洗一次衣服为此同宿舍大地哥、来旺哥、金生哥、田森哥到工地杂货铺起哄买东西时小军买东西只有一样：洗衣粉……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.