自己早期写的一个ATM机模拟器，支持用户注册、存款、取款、转账、管理员操作、客户数据文件简单存取等功能，界面简洁，是C语言学习的不错参考。-Their own ATM machine early to write a simulator to support user registration, deposits, withdrawals, transfers, manager operations, easy access to customer data files and other f