成功解决You are using pip version 10.0.1, however version 18.0 is available. You should consider upgradi

解决问题：

You are using pip version 10.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

解决办法：

直接运行命令：python -m pip install --upgrade pip

这样就成功更新了pip了~~