制作这个程序的目的是因为我见过了该程序的相关c、c++、delphi、java版本，惟独没有VB版。我的一个C++朋友说VB不适合于这个功能，看看是不是这样！-produced the purpose of this procedure is because I have seen the relevant procedures c, c, delphi, java version, except no VB version. One of my friends said C VB are not suited to the function and see whether this is not the case!