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After studying the design pattern during this period of time, I still have a lot of feelings, because when I am writing code now, I often think about whether I can use any design pattern to refactor here. Therefore, after learning the design pattern, I feel that it will slowly affect the way you think about writing code. Here is a summary of the design patterns. First, all the design patterns can be sorted out. Second, an index can be made to help everyone collect.When the process is reasonable, When contingency plans are adequate, It is time to show the real strength. Look at the recovery situation after the emergency. The main reference is that the business interruption time is generally less than 10min-15min, which depends on the importance of the business and cannot be determined in a word. Then there is the business recovery time. The shorter the recovery time, the simpler and more efficient the plan. Finally, there is the business recovery situation, and the corresponding business tests are directly carried out.The adapter mode focuses on adapting interfaces and adapting interfaces that do not match to each other.One of the characteristics of network-based mind mapping tools is online storage. This means that you can access its database from any computer, even tablet computers and smart phones. These technology-leading developers have added support for various mobile devices so that you can view, edit and create your mind map wherever you are.一位逃离婚姻，一位是部落首领继承人，如此身份不同的二人相遇了。他们之间会发生怎样的故事呢？按理说，他应该翻开《苍茫英雄》。