共计 1051 个字符，预计需要花费 3 分钟才能阅读完成。
适用于ubuntu 20.04 amd64架构
sudo cp /etc/apt/source.list /etc/apt/source.list.bak
sudo vim /etc/apt/source.list
将下面的代码拷进source.liist
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
同样适用于其他开源镜像站例如腾讯云或者网易云https://mirrors.tencent.com/ http://mirrors.163.com/ https://repo.huaweicloud.com/ubuntu/ 等
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