自己做的：从CButton派生，用法和CBitmapButton几乎一样，用AutoLoad调用一

下就行了。唯一的不同在于四个位图的后缀为N，U，D和X，分别代表normal，

pop-up，push-down和disabled。 -Themselves to do: CButton derived from and the route and CBitmapButton almost identical, with call Autoload click on the list. The only difference is that four of the suffix bitmap for the N, U, D and X, respectively, on behalf of normal, pop-up, push-down and disabled.