apt-get update 太慢,如何解决

apt-get update 太慢如何换源 备份系统source文件 sudo cp sources.list sources.list.bak 替换source内容 打开source文件,替换内容 # deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-properties deb
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