使用ncurses库绘制登陆界面 并且能对输入的用户名和密码的字符数字进行控制-Ncurses library to draw the login screen and enter the user name and password the number of characters to control

Linux系统下插入U盘后需要输入密码才能使用U盘-Insert U disk Linux system requires a password to use U disk

在linux系统下,采用锐捷登录校园网，需要输入用户名及密码(Under the Linux system, using agile logon to the campus network)