1. LeetCode算法系列.0023_合并K个排序链表 -- https://studygolang.com/articles/14723

2. https://blog.csdn.net/luolianxi/article/details/105592179

3.https://blog.csdn.net/sinat_35406909/article/details/103818364

4. mysql -- 重要：https://blog.csdn.net/Hudas/article/details/122869529?spm=1001.2014.3001.5502