Windows系统自带的画图板简单灵巧，为用户的小型图形开发工作带来了很多便利。本实验完全利用C语言开发了一个画图板，该画图板具有画图、调整图形大小与方位、保存与打开文件等基本图能。-Windows system comes with the drawing board is a simple, smart, and brought a lot of small graphics development work for the user s convenience. In this stud