提示pip需要升级，但是升级后还是会提示需要升级，则需卸载pip后重装

(venv) E:\platformtools\automagic-master>pip uninstall pip Uninstalling pip-10.0.1: Would remove: e:\platformtools\automagic-master\venv\lib\site-packages\pip-10.0.1-py3.6.egg e:\platformtools\automag

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