pip 升级操作

报错：

　　You should consider upgrading via the 'd:anacondainstallenvs ensorflowpython.exe -m pip install --upgrade pip' command.

改错：

① “开始”页面点击“Anaconda Prompt”

② 在命令行输入：

　python -m pip install --upgrade pip -i https://pypi.tuna.tsinghua.edu.cn/simple

OK，成功！