找了半天原因，原来是因为辅助依赖包没安装完整：
pip install numpy matplotlib pillow wordcloud imageio jieba snownlp itchat -i https://pypi.tuna.tsinghua.edu.cn/simple
找了半天原因，原来是因为辅助依赖包没安装完整：
pip install numpy matplotlib pillow wordcloud imageio jieba snownlp itchat -i https://pypi.tuna.tsinghua.edu.cn/simple