适合初学者入门学习的程序，使用microsoft的基本功能函数。主要实现了画矩形，画直线2大功能，对处于矩形框架外的直线进行裁剪。(工程文件名为“裁剪”)-AppWizard has created this CUT application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting