一个Linux下用qt编写的登录窗口界面源码-The interface of a Linux source code under the login window

在linux下用Qt实现的用户登录界面，输入用户名和密码成功后会跳转至主窗口，如果不成功则清空编辑框。-Under linux with Qt user login screen, enter your user name and password success will jump to the main window, if unsuccessful, then empty the edit box.