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中文简介 CRUD是指在做计算处理时的增加(Create)、查询(Retrieve)（重新得到数据）、更新(Update)和删除(Delete)几个单词的首字母简写。主要被用在描述软件系统中数据库或者持久层的基本操作功能。英文释义
In computing, CRUD is an acronym for create, retrieve, update, and
delete. It is used to refer to the basic functions of a database or
persistence layer in a software system.
C reate new records
R etrieve existing records
U pdate existing records
D elete existing records.
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