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package entity ;
/**
* 用户实体类
* 用于存储用户的基本信息：用户名、密码和用户类型（小学/初中/高中）
* 这是一个不可变类， ，
*/
public class User {
private final String username ; // 用户名
private final String password ; // 密码
private final String type ; // 用户类型：小学、初中、高中
/**
* 构造函数
* @param username 用户名
* @param password 密码
* @param type 用户类型
*/
public User ( String username , String password , String type ) {
this . username = username ;
this . password = password ;
this . type = type ;
}
// Getter方法
public String getUsername ( ) { return username ; }
public String getPassword ( ) { return password ; }
public String getType ( ) { return type ; }
}
