解决 Python 安装库时速度慢或者超时问题设置超时时间1pip --default-timeout=1000 install jieba-i 指定源1pip install wordcloud -i https://pypi.tuna.tsinghua.edu.cn/simple/更改默认设置~/.pip/pip.conf1234[global]index-url = http://mirrors.aliyun.com/pypi/simple/[install]trusted-host=mirrors.aliyun.com