界面清晰，易学易做！ 1首先，登入系统！ 有密码和用户名！ 有右键菜单 2成功登入后，方可进行操作！ 灰色菜单变得可用！ 3接着分几个步骤进行-The interface is clear, easy to learn and easy to do! First, log on to the system! Password and user name! Right-click menu successfully logged only