本系统采用JAVA语言并在eclipse环境下编写测试完成，涉及类的概念，异常处理机制，基本上模拟了ATM系统的相关实现，且代码内标注大量注释，读者可以很轻松的看清楚,仅适合初学者-This system uses the JAVA language and written tests are completed in the Eclipse environment, relates to the concept of a class, the exception handling mechan