# 常用指令
conda create -n XXXXX python=3.8  #python 一般大于3.8

conda activate XXXXX

python # 此时python在XXXXX 环境中了

pip install 包名

conda deactivate

conda env list

换软件镜像源

conda 换源

# 更换中科大的源
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/main/
conda config --set show_channel_urls yes

https://mirrors.ustc.edu.cn/help/anaconda.html

pip 换源

# 换清华源
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

https://mirrors.tuna.tsinghua.edu.cn/help/pypi/

apt换源

有两个办法，图形化的方法和命令行的方法

图形化

命令行

sudo gedit /etc/apt/sources.list

将下面代码复制进去，保存退出，最后 sudo apt update 更新。

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
# # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse