1. PyCharm报错：No module named xxx（歧途）

解决：

1. win键+R，打开cmd，输入下列命令

   pip install requests
   

2. 遇到报错

   Requirement already satisfied: requests in c:\users\10162\appdata\local\programs\python\python310\lib\site-packages (2.27.1)
   Requirement already satisfied: idna<4,>=2.5 in c:\users\10162\appdata\local\programs\python\python310\lib\site-packages (from requests) (3.3)
   Requirement already satisfied: certifi>=2017.4.17 in c:\users\10162\appdata\local\programs\python\python310\lib\site-packages (from requests) (2022.5.18.1)
   Requirement already satisfied: urllib3<1.27,>=1.21.1 in c:\users\10162\appdata\local\programs\python\python310\lib\site-packages (from requests) (1.26.9)
   Requirement already satisfied: charset-normalizer~=2.0.0 in c:\users\10162\appdata\local\programs\python\python310\lib\site-packages (from requests) (2.0.12)
   

   解决： 在cmd中输入命令（格式为：pip install 库名 --target=上面报错的路径）

   pip install requests --target=c:\users\10162\appdata\local\programs\python\python310\lib\site-packages
   

   参考连接
   https://blog.csdn.net/qq_16906867/article/details/105558288

3. 遇到Warining

   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\certifi already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\charset_normalizer already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\idna already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\idna-3.3.dist-info already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\requests already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\urllib3 already exists. Specify --upgrade to force replacement.
   WARNING: Target directory c:\users\10162\appdata\local\programs\python\python310\lib\site-packages\bin already exists. Specify --upgrade to force replacement.
   

   解决： 在cmd中输入命令（格式为：pip install 库名 --target=上面报错的路径 --upgrade）

   pip install requests --target=c:\users\10162\appdata\local\programs\python\python310\lib\site-packages --upgrade
   

   参考链接
   https://blog.csdn.net/qq_35318838/article/details/76269692

2. 安装后模块后，PyCharm中依旧报错No module named xxx（可以直接从这边开始）

解决：

参考连接
https://www.cnblogs.com/cs0915/p/14146127.html