新家！以后就用Blogger啦~
Blog.cd的WordPress后台登不进去了，然而Blogo还是可以继续向里面写博文，也没法备份出来，只能一篇一篇的转移，这好烦啊。。以后就用Blogger啦~
Delegate
Each delegate is responsible for a specific role or task to keep the system simple and clean.Whenever an object needs to perform a certain task, it depends on another object to handle it. This is usually known as “separation of concerns” in software design.
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