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1.编辑 /etc/apt/sources.list
deb http://mirrors.tencentyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.tencentyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.tencentyun.com/ubuntu/ bionic-updates main restricted universe multiverse #deb http://mirrors.tencentyun.com/ubuntu/ bionic-proposed main restricted universe multiverse #deb http://mirrors.tencentyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.tencentyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.tencentyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.tencentyun.com/ubuntu/ bionic-updates main restricted universe multiverse #deb-src http://mirrors.tencentyun.com/ubuntu/ bionic-proposed main restricted universe multiverse #deb-src http://mirrors.tencentyun.com/ubuntu/ bionic-backports main restricted universe multiverse
2.把上方腾讯云的apt源替换至sources.list文件中
3.刷新软件源信息：
sudo apt update
4.更新软件
sudo apt upgrade
感谢大佬的分享，赞一个！
感谢大佬的分享，赞一个！