银行账户存取款业务（java实验）,信用卡账户类，储蓄卡账户类，模拟银行类，客户端类，涉及知识点：继承、多态、对象类型转换。-Bank account deposit and withdrawal services (java experiment), the credit card account type, savings card account type, analog banking clients, those involving knowledge: inheritance, po

在控制台上，提供银行账户信息，包括取款，存款，查询余额等。这是java语言编写的-On the console, providing bank account information, including withdrawals, deposits, balance inquiries, etc.It is written in java

本软件主要是为用户在银行自助服务的目的设计。主要业务包括注册、取款、存款、转账、修改密码、查询余额和查询修改信息等项目，一个用户只允许操作自己的信息，保证用户账户的安全。(The software is designed for the purpose of self-service banking users. The main business includes registration, withdrawals, deposits, transfers, changes in passwo