安装Tensorflow 2.0后的坑has no attribute ‘contrib‘

The TensorFlow contrib module will not be included in TensorFlow 2.0.
For more information, please see:

• https://github.com/tensorflow/community/blob/master/rfcs/20180907-contrib-sunset.md
• https://github.com/tensorflow/addons
• https://github.com/tensorflow/io (for I/O related ops)
  If you depend on functionality not listed there, please file an issue.

解决办法：
笔者简单地pip uninstall tensorflow
装回1.X的版本