午后的阳光

摘要： 切换 root 权限 sudo su备份源文件cp /etc/apt/sources.list /etc/apt/sources.list.back 1cp /etc/apt/sources.list /etc/apt/sources.list.back打开 gedit /etc/apt/sources.list /etc/apt/sources.list 1 gedit /etc/apt/sou... 阅读全文