信号流图分析软件，是自动控制领域的一个辅助软件，有利于课堂教学，和平时计算。vb的程序。-Signal flow drawing analysis software is one of auxiliary softwares in the automatic control realm . It is convenient in teaching and in ordinary computing.(write in vb)

用MFC绘制金刚石图案，用户输入不同的境界点数，可以等到不同的图案-Draw a diamond pattern with the MFC, users enter a different realm of points, you can wait until a different pattern