sudo pacman-mirrors -i -c China -m rank

[archlinuxcn]
SigLevel = Optional TrustedOnly
#中科大源
Server = https://mirrors.ustc.edu.cn/archlinuxcn/$arch
#清华源
Server = https://mirrors.tuna.tsinghua.edu.cn/archlinuxcn/$arch

sudo pacman-mirrors -g

sudo pacman -Syyu

sudo pacman -S archlinuxcn-keyring
sudo pacman -S antergos-keyring

pip install scrapy -i https://pypi.tuna.tsinghua.edu.cn/simple

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

#USTC仓库镜像
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 附加库
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/msys2/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/bioconda/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/menpo/
#使之生效
conda config --set show_channel_urls yes

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge 
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
conda config --set show_channel_urls yes

conda config --remove-key channels