Debian 9 更新 sourrce.list(163源）

需求说明：
更新apt-get源

[email?protected]:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 9.4 (stretch)
Release:    9.4
Codename:   stretch
[email?protected]:~$ cat /etc/apt/source-list
# deb cdrom:[Debian GNU/Linux 9.4.0 _Stretch_ - Official amd64 xfce-CD Binary-1 20180310-11:21]/ stretch main
#deb cdrom:[Debian GNU/Linux 9.4.0 _Stretch_ - Official amd64 xfce-CD Binary-1 20180310-11:21]/ stretch main

#deb http://mirrors.163.com/debian/ stretch main
#deb-src http://mirrors.163.com/debian/ stretch main

#deb http://security.debian.org/debian-security stretch/updates main
#deb-src http://security.debian.org/debian-security stretch/updates main

# stretch-updates,previously known as ‘volatile‘
#deb http://mirrors.163.com/debian/ stretch-updates main
#deb-src http://mirrors.163.com/debian/ stretch-updates main

deb http://mirrors.163.com/debian/ stretch main non-free contrib
deb http://mirrors.163.com/debian/ stretch-updates main non-free contrib
deb http://mirrors.163.com/debian/ stretch-backports main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch-updates main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch-backports main non-free contrib
deb http://mirrors.163.com/debian-security/ stretch/updates main non-free contrib
deb-src http://mirrors.163.com/debian-security/ stretch/updates main non-free contrib

配置完成后： sudo apt-get update 测试。