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Your input ran out of data; interrupting training. Make sure that your dataset or generator can generate at least `steps_per_epoch * epochs` batches (in this case, 3000 batches). You may need to use the repeat() function when building your dataset.histo.

按照别人的方法一步一步来1、进入命令行环境2、安装nbextensionspip install --user jupyter_contrib_nbextensions -i https://pypi.mirrors.ustc.edu.cn/simplejupyter contrib nbextension install --user3、安装nbextensions_config...

错误原因：python的Input()方法返回的是字符串，并非想要的整形或者浮点型数据，此句应该改为：强制类型转化一下