MySQL数据库死锁问题

参看:https://www.bilibili.com/video/BV1RT4y1R7bL/?spm_id_from=333.337.search-card.all.click&vd_source=46d50b5d646b50dcb2a208d3946b1598
https://www.bilibili.com/video/BV1Sm4y1C7WX/?spm_id_from=333.337.search-card.all.click&vd_source=46d50b5d646b50dcb2a208d3946b1598