豆瓣
-i https://pypi.douban.com/simple
淘宝
-g --registry = https://registry.npm.taobao.org
清华园
-i https://pypi.tuna.tsinghua.edu.cn/simple
-i https://pypi.douban.com/simple
-g --registry = https://registry.npm.taobao.org
-i https://pypi.tuna.tsinghua.edu.cn/simple