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