报错：
You should consider upgrading via the ‘d:\anaconda\install\envs\tensorflow\python.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！