Visual FoxPro程序设计及其应用系统开发之发票信息管理系统-Visual FoxPro program design and applications development based on the invoice information management system

完成一个Blackjack的纸牌游戏，主要是考察队类的继承等特性，但其中有个地方逻辑上存在问题，在此版本中是先调用发牌函数，然后在发牌函数只能够去查看是否满足发牌条件，但我认为，应该是先检查发票条件，再执行发牌函数，但后者实现步骤会比前者多-Complete a Blackjack card game, mainly expedition features such as class inheritance, but there was a place of logic problems, in