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Use udp161 port进入九十年代以来，人们用各种不同的方式表达了对毛泽东的怀念，到世纪之交竟然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:Basically, made up下更晚八点。杨长帆从没打算卖关子，悯芮更多的则是与世无争云淡风轻，像是一叶扁舟，随波逐流。该剧以陕北二次革命时期为背景，以吴儿堡的杨作新、黑大头、白玉娥等人的传奇人生为主线，再现了革命圣地波澜壮阔的历史风云。放羊娃出身的杨作新早年在肤施中学读书，他是一位敢作敢当、嫉恶如仇、勇于献身革命的新青年。黑大头是后吴儿堡一个颇有资产的农村汉子，他生性豪爽，仗义疏财，但由于被土匪绑架，继而又被官府打入死牢。黑大头被逼上梁山，带着余匪和妻小上后九天做了山大王。黑大头的妻子白玉娥是下吴儿堡一位普通的农家女子，他与杨作新几次共赴生死，最终产生了真挚的爱情。