任何Windows Forms控件都有一个Paint事件，你不必派生自己的类。但是，肯定，你可以，它帮助分区的代码。只需选择一个已经提供大部分需要的基类。在构造函数中将DoubleBuffered属性设置为true，并重写OnPaint。

Any Windows Forms control has a Paint event, you don't have to derive your own class. But sure, you can, it helps partitioning the code. Just pick a base class that already provides most of what you need. Set the DoubleBuffered property to true in the constructor and override OnPaint.