使用GTALK的同学，可以使用下面命令安装该插件：
下载地址@here
#18,安装MP#，avi等其他媒体格式编码
su yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-rawhide.noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-rawhide.noarch.rpm
rpm -ivh http://rpm.livna.org/livna-release.rpm
yum update
#19，安装解压缩软件7z
sudo yum install p7zip p7zip-plugins
#20，安装GIMP
