数据来源：https://github.com/zhangsheng93/cMedQA

• questions.csv All Questions and their content.
• answers.csv All Answers and their content.
• train_candidates.txt dev_candidates.txt test_candidates.txt The split of training set, development set and test set respectively.

这里我们主要使用了questions.csv和answers.csv两个文件的信息，提取了医疗问题和相应的回答

注意：这里只是做了一个最简单的医疗问答的demo，后面还有很多需要优化的地方