利用Visual C++平台，编写的一个绘制连续线条的小程序，实现了线条的重绘和串行化-Platform using Visual C++, write a small program to draw a continuous line, and redraw the lines to achieve serialization

任意绘制图形，并不用序列化的方式实现窗口变化图形保存-Arbitrary rendering graphics, does not use serialization means to achieve change window graphics are saved