Iphone 如何使用“创建同时包含两个”的复合谓词；或；及；及；

我获取了以下3个类别，但希望添加一个“AND”谓词以缩小结果范围，其中“mark”处于启用状态

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//我想这样做：

NSPredicate *finalPredicate = [compoundPredicate && markPredicate];

[fetchRequest setPredicate:finalPredicate];

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这就是你要找的吗

NSPredicate *finalPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:
         [NSArray arrayWithObjects:compoundPredicate, markPredicate, nil]];

或者，对容器文本使用“modern Objective-C”语法：

NSPredicate *finalPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:
                                     @[compoundPredicate, markPredicate]];

NSPredicate *finalPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:
         [NSArray arrayWithObjects:compoundPredicate, markPredicate, nil]];

NSPredicate *finalPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:
                                     @[compoundPredicate, markPredicate]];