此渐变按钮"很可能不是按钮，而是其他一些具有渐变"外观的控件. > 因此，它没有与常规一起使用的执行点击事件.按钮 [ ^ ].

This ''gradint button'' is most probably not a button but some other control that has been given a ''gradient'' look.
Hence, this does not have the perform click event which is used with a normal button[^].