以C++为语言并运用API函数编写的一个窗口绘图小程序。类似于WINDOWS自带绘图软件。（完成了基本功能，风格等个别功能未实现）。-To C++ For the language and the use of API function to prepare a window drawing applet. WINDOWS similar to its own mapping software. (Completed a basic function, style and other indiv