Python version 2.7 does not support this syntax. super() should have argument...

Python version 2.7 does not support this syntax. super() should have arguments in Python 2，是因为书中示例是用python 3写的，因此super的接口2.7不支持，将super().init()变为 super(CNN, self).init()，问题就可以修复，供大家参考。