WIN10下成功解决You are using pip version 19.0.3, however version 20.0.2 is available.......问题

You are using pip version 19.0.3, however version 20.0.2 is available. You should consider upgrading via the ‘python -m pip install --upgrade pip’ command. 您使用的是pip版本19.0.3,，但是20.0.2版是可用的。 您应该考虑通过“pyt

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