1、安装图像化界面的Linux系统（centos6.5）
yum groupinstall -y "Desktopp" \
"Desktop Platform" \
"Fonts" \
"General Purpose Desktop" \
"Graphical Administration Tools" \
"Input Methods" \
"Legacy X Window System compatibility" \
"Remote Desktop Clients" \
"X Window System"
2、安装浏览器：yum install firefox 3、模式切换 1.如果在图形界面下,按:Ctrl+Alt+F2,可以进入命令行模式; 2.如果在命令行模式，执行命令 $startx 可以进入图形界面;
