tensorflow包网站路径:https://pypi.org/project/tensorflow/2.0.0rc0/#modal-close
清华镜像路径:https://mirrors.tuna.tsinghua.edu.cn/tensorflow/linux/gpu/
清华镜像路径2:http://mirrors.aliyun.com/pypi/simple/tensorflow-gpu/
建议使用迅雷下~