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When performing some abnormal operations, such as stopping the database without reason when reading and writing the database, resulting in abnormal interruption of SQL Server database,A total of 28 major events and 301 minor events90年代经典怀旧动画：《济公传奇》系列动画片 济公原名李修元，天台城关小北门外石墙头人。少时受佛道文化熏陶，涉猎经史传统文化，善诗、词。父母亡后，先后于国清寺、灵隐寺、净慈寺拜师学佛，被赐法号“道济”，又被戏称“济颠”，圆寂后近几千年来人们均称为-济公 怀旧动画片《济公传奇》是由中央电视台动画部出品，全集共5集。前面果然是个集镇，到了路口，小灰实在撑不住了，狗腰一闪，连人带狗都扑倒在地上。From the above command class code, we can see that any operation has an execute method to perform the operation. The above code uses traditional object-oriented programming to implement the command mode. The procedural request call of the command mode is encapsulated in the execute method of the command object. Have we found the above writing code a little cumbersome? We can do this using the callback functions in javascript, In object-oriented, The receiver of the command mode is saved as an attribute of the command object, and the command execution operation is agreed to call the command.execute method. However, if we use the callback function, then the receiver is closed in the environment where the callback function is generated, and the execution operation will be simpler. Only the callback function can be executed. Let's look at the following code: