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4、CoreData简单示例.xcodeproj
4、CoreData简单示例.xcodeproj
4、CoreData简单示例
4、CoreData简单示例
4、CoreData简单示例Tests
4、CoreData简单示例Tests
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coreData的封装，实现上下文、模型、存储区的建立，实现子线程上下文查询，主线程上下文获取数据
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