Ubuntu系统自带的源都是国外的网址，国内用户在使用的时候网速比较慢。一个软件的下载是十分痛苦的，这里讲解一下如何将国外源更换为国内源，让你的网速Biu.Biu.Biu。

更换apt-get数据源

1.备份原先的源

sudo cp /etc/apt/sources.list  /etc/apt/sources.list.back_20181007

将以前的源备份一下，以防以后可以用的。

2.更换源

sudo gedit /etc/apt/sources.list

使用gedit打开文档，将下边的阿里源复制进去，然后点击保存关闭。

阿里源

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse 

deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse 

deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse 

deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse 

deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse 

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse 

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse 

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse 

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe

3.更新源与软件

更新源

sudo apt-get update

更新软件

sudo apt-get upgrade

4.其他常用源

西电源（只有校内网网线使用，但是不限制流量，还是十分靠谱的）

deb http://linux.xidian.edu.cn/mirrors/ubuntu/ xenial main restricted universe multiverse#deb-srchttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial main restricted universe multiversedeb http://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-security main restricted universe multiverse#deb-srchttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-security main restricted universe multiversedeb http://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-updates main restricted universe multiverse#deb-srchttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-updates main restricted universe multiverse#debhttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-backports main restricted universe multiverse#deb-srchttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-backports main restricted universe multiverse#debhttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-proposed main restricted universe multiverse#deb-srchttp://linux.xidian.edu.cn/mirrors/ubuntu/ xenial-proposed main restricted universe multiverse

清华源

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse

网易源

deb http://mirrors.163.com/ubuntu/ wily main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ wily-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ wily-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ wily-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ wily-backports main restricted universe multiversedeb-srchttp://mirrors.163.com/ubuntu/ wily main restricted universe multiversedeb-srchttp://mirrors.163.com/ubuntu/ wily-security main restricted universe multiversedeb-srchttp://mirrors.163.com/ubuntu/ wily-updates main restricted universe multiversedeb-srchttp://mirrors.163.com/ubuntu/ wily-proposed main restricted universe multiversedeb-srch    ttp://mirrors.163.com/ubuntu/ wily-backports main restricted universe multiverse

  参考网址:https://blog.csdn.net/qq_35451572/article/details/79516563

更换pip数据源

1.根目录创建.pip文件

mkdir ~/.pip

2.创建文件pip.conf

vim .pip/pip.conf

3.点击“i”键，进入编辑模式，复制以下信息：

[global]

index-url = https://pypi.tuna.tsinghua.edu.cn/simple

trusted-host = pypi.tuna.tsinghua.edu.cn

4.点击：“ESC”切换到命令行模式，输入“:wq”保存离开。

5.其他常用源

清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/

阿里云 http://mirrors.aliyun.com/pypi/simple/

中国科技大学 https://pypi.mirrors.ustc.edu.cn/simple/

豆瓣(douban) http://pypi.douban.com/simple/

中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/