debian10 更换apt-get 163国内源
在用debain10的时候装软件 各种拉胯，受不了，还是C7香···
1、可以先备份sources.list文件
文件位于：
/etc/apt/sources.list
2、直接覆盖修改成以下163源(用了aliyun和163，发现还是163好用)
deb http://mirrors.163.com/debian/ buster main non-free contrib
deb http://mirrors.163.com/debian/ buster-updates main non-free contrib
deb http://mirrors.163.com/debian/ buster-backports main non-free contrib
deb-src http://mirrors.163.com/debian/ buster main non-free contrib
deb-src http://mirrors.163.com/debian/ buster-updates main non-free contrib
deb-src http://mirrors.163.com/debian/ buster-backports main non-free contrib
deb http://mirrors.163.com/debian-security/ buster/updates main non-free contrib
deb-src http://mirrors.163.com/debian-security/ buster/updates main non-free contrib
3、更新源
apt-get update
然后就愉快的安装apt-get了