Running setup.py install for Twisted … error pip install https://download.lfd.uci.edu/pythonlibs/z4tqcw5k/Twisted-20.3.0-cp39-cp39-win_amd64.whl 装下 Twisted 即可 否则 ，需要下载庞大的vs来编译，还会失败 或者点击这个下载解压 Twisted-20.3.0-cp39-cp39-win_amd64.whl下载 pip install D:\Downloads\Twisted-20.3.0-cp39-cp39-win_amd64.whl