利用asp.net实现用户类型判断的登录系统，wzmsql.bak是数据库备份文件，测试前请还原，里面用到三层架构，本程序的编写要求也就是要实现的功能如下：用户类型有管理员和普通用户两种、普通用户登录后可以修改自己的密码、管理员登录后可以查看所有用户的账号密码。-Determine the type of use asp.net to implement user login system, wzmsql.bak is a database backup files, restore the pre-test, which uses three-tier structure, the procedures for the preparation requirements is to achieve the following functions: user type has administrator and two kinds of ordinary users, ordinary users can modify their own login password, the administrator can view all user login account password.