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objective-c - Swift CoreData DictionaryResultType 转换

在下面的代码中,我使用CoreData来获得不同的结果:request.propertiesToFetch=NSArray(objects:"docID","docName")request.resultType=NSFetchRequestResultType.DictionaryResultTyperequest.returnsDistinctResults=truevardistinctResults:NSArray=context.executeFetchRequest(request,error:nil)println(distinctResults)这是println()的