debian如何换源问题

## debian如何换源问题
- what: debian换源
- where: centos7
- when: 2022.3.24
- who: jiaorongtao
- why: 记录
- how:

```
#查源
root@f1406b1e0b7d:/# cat /etc/apt/sources.list
# deb http://snapshot.debian.org/archive/debian/20220316T000000Z bullseye main
deb http://deb.debian.org/debian bullseye main
# deb http://snapshot.debian.org/archive/debian-security/20220316T000000Z bullseye-security main
deb http://security.debian.org/debian-security bullseye-security main
# deb http://snapshot.debian.org/archive/debian/20220316T000000Z bullseye-updates main
deb http://deb.debian.org/debian bullseye-updates main

#换源
sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list

root@f1406b1e0b7d:/# cat /etc/apt/sources.list
# deb http://snapshot.debian.org/archive/debian/20220316T000000Z bullseye main
deb http://mirrors.aliyun.com/debian bullseye main
# deb http://snapshot.debian.org/archive/debian-security/20220316T000000Z bullseye-security main
deb http://security.debian.org/debian-security bullseye-security main
# deb http://snapshot.debian.org/archive/debian/20220316T000000Z bullseye-updates main
deb http://mirrors.aliyun.com/debian bullseye-updates main
root@f1406b1e0b7d:/#

```