打开配置文件 sudo vim /etc/apt/sources.list
sudo vim /etc/apt/sources.list
替换官方源为阿里云源 :%s/security.ubuntu/mirrors.aliyun/g :%s/archive.ubuntu/mirrors.aliyun/g
:%s/security.ubuntu/mirrors.aliyun/g
:%s/archive.ubuntu/mirrors.aliyun/g
vim命令换ubuntu源
原文：https://www.cnblogs.com/lzping/p/12399085.html
