[root@localhost iexcept]# uname -or
3.10.0-327.el7.x86_64 GNU/Linux
[root@localhost iexcept]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
[root@localhost iexcept]# yum install lxde
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.besthosting.ua
* extras: mirror.besthosting.ua
* linuxtech-release: pkgrepo.linuxtech.net
* updates: mirror.besthosting.ua
No package lxde available.
Error: Nothing to do
[root@localhost iexcept]#
我能用它做什么？如果我必须自己动手编译，您能给我提供一些工作说明吗？