摘要：
1.CommandEvent类的作用——为Command事件提供数据语法（C#）Public class CommandEventArgs: EventArgs;从中可以看出该类继承了EventArgs类2.构造函数（1）CommandEventArgs(CommandEventArgs)——Initializes a new instance of the CommandEventArgs class with another CommandEventArgs object.语法：public CommandEventArgs(CommandEventArgs e )（2）CommandEv 阅读全文