1.新建文件
touch /etc/apt/sources.list.d/deepin-ubuntu-dde-bionic.list
2.编辑文件
vi /etc/apt/sources.list.d/deepin-ubuntu-dde-bionic.list
3.粘入以下内容
deb [by-hash=force] https://mirrors.aliyun.com/deepin/ apricot main contrib non-free
deb-src https://mirrors.aliyun.com/deepin/ apricot main contrib non-free
4.检查更新
update
5.如果报NO_PUBKEY 没有公钥，则运行以下命令，自动导入缺失的公钥，可以多运行几次，直到不再报错
/etc/apt/sources.list.d$ sudo apt-get update 2>&1 | tee /tmp/apt.tmp; cat /tmp/apt.tmp | grep 'NO_PUBKEY' | awk -F'NO_PUBKEY' '{print $2}' | sort | uniq | xargs sudo apt-key adv --keyserver keyserver.ubuntu.com --recv
6.apt update正常
