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张司业居安思危，洞悉东海。Command mode belongs to the behavior mode of an object. Command mode encapsulates a request or operation into an object, and separates the responsibility of issuing the command from the responsibility of executing the command through abstraction of the command. The implementation of command mode can provide the functions of revocation and recovery of commands. The specific structure diagram is shown below.看到大家一片激动热烈，陈启也是笑了起来。破产能用在这么？板栗道：你们还没猜哩，谁知我用不用付这个钱？因说道：有个人胆子特别大，也跟咱们一样，姓张，叫张大胆。We choose some we need, but when installing MinWG in general, you should at least install gcc-core, gcc-g + +, binutils and MinGW runtime, etc. You should watch the installation yourself. After selecting, click installation-apply in the upper left corner, and then download it all the time. After installing codeblock, this is the case:ZI am an ordinary teacher, The salary is not high either. The money invested is saved and saved by oneself at ordinary times. When I heard something happened to the investment family, I felt that I suddenly lost a lot of hard-earned money. It was hard to avoid heartache, but I could not sleep or eat, because I had certain psychological preparation before investing: investment would be risky and I was willing to accept defeat by gambling.