改成with open(r'科任老师',encoding='utf-8') as fin:,因为Python默认以gbk编码打开文件, 而你的文件可能是utf-8编码的, 就会出现解码错误。这也是Python处理中文的常见编码问题,如果有帮助, 点个「采纳」谢谢。
with open(r'科任老师',encoding='utf-8') as fin: