[已解决]win10&Ubuntu中dlib库安装(python3.8)_you must use visual studio to build a python exten

一、win10安装dlib

环境：python3.8.0

1、直接pip安装

pip install dlib
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报错：

You must use Visual Studio to build a python extension on windows.  If you
are getting this error it means you have not installed Visual C++.  Note
that there are many flavors of Visual Studio, like Visual Studio for C#
development.  You need to install Visual Studio for C++.
.....
note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for dlib
Failed to build dlib
ERROR: Could not bu
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