國內(nèi)有很多Ubuntu的鏡像源，包括阿里的、網(wǎng)易的，還有很多教育網(wǎng)的源，比如：清華源、中科大源。

我們這里以中科大的源為例講解如何修改Ubuntu 22.04里面默認(rèn)的源。

編輯/etc/apt/sources.list文件, 在文件最前面添加以下條目(操作前請(qǐng)做好相應(yīng)備份)：

中科大源

deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

然后執(zhí)行命令：

sudo apt-get update

sudo apt-get upgrade

阿里源

deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

163源

deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse

清華源

# 默認(rèn)注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

# 預(yù)發(fā)布軟件源，不建議啟用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

更換python環(huán)境 pip 源為國內(nèi)源

1.臨時(shí)換源（加上一個(gè)-i參數(shù)后接源的url即可）：

#清華源
pip install numpy -i https://pypi.tuna.tsinghua.edu.cn/simple

# 阿里源
pip install numpy -i https://mirrors.aliyun.com/pypi/simple/

# 騰訊源
pip install numpy -i http://mirrors.cloud.tencent.com/pypi/simple

# 豆瓣源
pip install numpy -i http://pypi.douban.com/simple/

2.永久換源：

# 清華源
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

# 阿里源
pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/

# 騰訊源
pip config set global.index-url http://mirrors.cloud.tencent.com/pypi/simple

# 豆瓣源
pip config set global.index-url http://pypi.douban.com/simple/# 換回默認(rèn)源pip config unset global.index-url