关于 Core Data，如果要在一个程序升级中新增数据属性，大家是怎么处理对原始数据的兼容性的呢？

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2 replies • 1970-01-01 08:00:00 +08:00

sharkli

May 5, 2012

XCode-> Editor -> Add Model Version
新增数据直接就ok了。
复杂点的增加个Mapping Model.

Kai

May 5, 2012

@sharkli 非常感谢！