ubuntu16改源ubuntu16更新apt源1.备份系统自带源2.修改/etc/apt/sources.list文件加入如下内容：3.更新生效
#ubuntu16更新apt源#1.备份系统自带源mv /etc/apt/sources.list /etc/apt/sources.list.bak#2.修改/etc/apt/sources.list文件vim /etc/apt/sources.list#加入如下内容：deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-propertiesdeb http://mirrors
