20200420使用VB6.0求12选3的全组合数
最近需要求组合数（买双色球生成号码用^_）
以前在大学专门学习过VB6.0，今后会迁移到VC6.0。
预计会在2020.5.1强化一下MFC，就可以了！
Option Explicit
Private Sub Command1_Click()
End Sub
Private Sub Command2_Click()
Dim h1%, h2%, h3%, h4%, h5%, h6%
Dim h6sum%
Install notes:
1. install program
2. run license patch - "try it now!.exe" (run as admin in Win7)
3. browse to the path containing the license file - "Bentley.liclib.dll" >> click "Try it now!" button >> done!
4. now your Bently program
