1、安装python配置环境变量
C:\Users\13634\AppData\Local\Programs\Python\Python311;C:\Users\13634\AppData\Local\Programs\Python\Python311\Scripts
更改 pip下载源
①在c:\user\用户名 目录中创建pip目录,在目录里新建pip.ini文件,输入如下内容:
[global]
index-url = https://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host = mirrors.aliyun.com
②cmd窗口输入
# 更换阿里源
pip config set global.index-url https://mirrors.aliyun.com/pypi/simple
# 更换清华源
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
# 更换腾讯源
pip config set global.index-url http://mirrors.cloud.tencent.com/pypi/simple
# 更换豆瓣源
pip config set global.index-url http://pypi.douban.com/simple/
# 更换中科大源
pip config set global.index-url https://pypi.mirrors.ustc.edu.cn/simple
#恢复默认源
pip config set global.index-url https://pypi.org/simp