代码错误：
Traceback (most recent call last):
File "D:\PyCharm\PythonProject\DRL-Networking-master\DRL-Networking-master\IPDPS2020\DNC_PPO.py", line 2, in <module>
import tensorflow.contrib.rnn as rnn
ModuleNotFoundError: No module named 'tensorflow.contrib'
原因：
tensorflow2.x不兼容tensorflow1
解决办法：
将import tensorflow.contrib.rnn as rnn替换为from tensorflow.python.ops import rnn
from tensorflow.python.ops import rnn解决。
