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2018-03-02 10:28:21Shipments recorded in documentsSoon I saw Li Jianzhong's C # Object-Oriented Design Pattern Lecture on MSDN's Webcast. A very good series of lectures gave me a new understanding of design patterns. I realized that learning design patterns, specifically learning object-oriented design patterns, should start with learning object-oriented. "The principle of object-oriented is like understanding the rules of chess, and the design pattern is equivalent to a mess. I don't know what the rules look at." Since I have been doing ASP.NET development for the previous year, although I have been writing classes, learning Duwamish to make hierarchical architecture, typed DataSet and custom entity classes, it seems that I haven't used interfaces much in the past year, and I seldom use any polymorphism. In fact, the understanding of object-oriented programming is still very vague.该剧改编自2004年的电影《我的百事通男友洪班长》,讲述诚实的女牙医和对小区无所不知的飞特族洪班长之间的万有引力喜剧爱情故事。珊瑚也有同感，觉得郑氏待她可好了。3 ", Automatic failure: When a Master cannot work properly, the sentinel will start an automatic failure migration operation, which will upgrade one Slave of the failed Master to a new Master and change the other Slave of the failed Master to copy the new Master; When the client attempts to connect to the failed Master, the cluster will also return the address of the new Master to the client, allowing the cluster to replace the failed Master with the current Master. After switching between Master and Slave servers, the contents of the configuration files of Master's redis.conf, Slave's redis.conf and sentinel.conf will change accordingly, that is, the redis.conf configuration file of Master's master server will have more than one line of slaveof configuration, and the monitoring target of sentinel.conf will be changed accordingly.5.4. 2