一个OpenGL程序，自己做的，有些地方可能不太好。解压缩无需密码。-an OpenGL procedures themselves, in some places may not be good. Decompress no password is required.

该程序用VB能够实现一边输入密码。以*形式出现 ，另一个文本框显示出输入密码内容(The program can be implemented with VB input password side. In the form of *, another text box displays the input password content)