阅读背景：

web开发中的两把锁之数据库锁：（高并发--乐观锁、悲观锁）

发表于:2021-03-25

　　脏读就是指当一个事务正在访问数据，并且对数据进行了修改，而这种修改还没有提交到数据库中，这时，另外一个事务也访问这个数据，然后使用了这脏读就是指当一个事务正在访问数据，并且对数据进行了修改，而这种修改还没有提交到数据库中，这时，另

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