本程序将VC向导自动生成的矩形窗口框架，通过类的派生创建出一个非矩形的框架窗口，以改变千篇一律的矩形外形。-VC Wizard automatically generated rectangular window fr a mework through the derived class to create a fr a mework of the non-rectangular window to change the stereotyped in a rectangular shape.