The WithEvents statement and the Handles clause are often the best choice for event handlers because the declarative syntax they use makes event handling easier to code, read and debug.

• WithEvents语句和Handles子句常常是事件处理程序的最佳选择,因为它们所用的声明语法使得对事件处理的编码和调试更加容易,并使人可以更加轻松地阅读它。