VC下COM编程的具体实现,本例以银行一个用户的存钱和取钱作介绍，用COM来具体实现.-VC COM programming under a concrete realization of the cases to a user's bank and collect the money for deposit, COM used to achieve specific.

串口通讯的交互交易程序．模拟一个银行交易处理过程．-Serial Communication interactive transaction procedures. Simulation of a bank transaction processing.