MySQL 事务死锁问题排查( 四 ) _MySQL

参考文献
[1] Innodb 锁官方文档：https://dev.mysql.com/doc/refman/5.7/en/innodb-locking.html?
[2] https://blog.csdn.NET/qq_43684538/article/details/131450395?
[3] https://www.jianshu.com/p/027afd6345d5?
[4] https://www.cnblogs.com/micrari/p/8029710.html?
若有错误，还望批评指正