安装 pydot_ng
pip install pydot_ng
下载 graphviz.msi
http://www.graphviz.org/Download_windows.php
修改 pydot_ng的__init__.py
修改 keras/utils/vis_utils.py
import pydot_ng as pydot
pip install pydot_ng
http://www.graphviz.org/Download_windows.php
import pydot_ng as pydot