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### Linux/Mac os 环境
配置文件位置在 ~/.pip/pip.conf（如果不存在创建该目录和文件）：
```
mkdir ~/.pip
vi ~/.pip/pip.conf
[global]
index-url = https://pypi.douban.com/simple
[install]
trusted-host = pypi.douban.com
```
### Windows环境
需要在当前对用户目录下（C:\Users\Administrator\pip）
创建一个 pip.ini,内容：
```
[global]
index-url = https://pypi.douban.com/simple
[install]
trusted-host = pypi.douban.com
```
### 查看python3版本
```
python3 --version
```
Python 3.7.9 [银河麒麟V10,并不免费，不是以后的首选。免费的还是用华为欧拉]
### 查看操作系统版本
```
cat /proc/version
```
Linux version 4.19.90-25.18.v2101.ky10.x86_64 (KYLINSOFT@COMPILE.MACHINE) (gcc version 7.3.0 (GCC)) #1 SMP Thu Aug 4 15:57:42 CST 2022
