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我用下面的代码获取nstrings排序中的核心数据
我想将它们整理出来的名单按字母顺序
怎么办塔尔请
self.context = appDelegate.managedObjectContext;
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription
entityForName:@"Studies" inManagedObjectContext:_context];
[fetchRequest setEntity:entity];
NSError *error;
self.StudiessList = [_context executeFetchRequest:fetchRequest error:&error];