能继承Graphics吗

[he717]

弱智的问题

[cppfaq]

public sealed class Graphics : System.MarshalByRefObject
    Member of System.Drawing

Summary:
Encapsulates a GDI+ drawing surface. This class cannot be inherited.

sealed类不能被继承

[wuyi8808]

public sealed class Graphics : MarshalByRefObject, IDeviceContext, 
	IDisposable

密封类，无法继承。