python使用国内源
全局使用国内源
pip config set global.index-url http://mirrors.cloud.tencent.com/pypi/simple
pip config set global.trusted-host mirrors.cloud.tencent.com
pip config set global.index-url http://mirrors.cloud.tencent.com/pypi/simple
pip config set global.trusted-host mirrors.cloud.tencent.com