用MFC实现二维的树，里面含有不同的计算规则和绘制方法 根据用户的选择绘制出不同的效果-MFC achieved by two-dimensional tree, which contains the rules and draw different calculation methods based on the user' s choice to draw the different effects

使用Visual C++，MFC类库绘制等值线-Visual C++, MFC class library to draw contour

一个用mfc编写的画图软件，是基于VC6.0，适用于初学者，下载学习-A mfc prepared using drawing software, is based on VC6.0, suitable for beginners, download learning