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我有两个数组：一个是早上消耗的水果总数，另一个是当天消耗的水果总数。我想做的是显示从早上以来所做的更改/添加并将其存储到一个新的数组whatsNewSinceMorningArray中。因此，首先我需要NSDictionary从两个数组中删除具有相同fruit和totalNumberConsumed值的任何对象（忽略comments），然后我想只是循环遍历wholeDayArray并减去这些totalNumberConsumed值以找到从早上开始消耗的数字。我已经阅读了几个线程来删除NSDictionary数组中的重复对象，但是对于我的特定示例，我无法弄清楚。将不胜感激一些指导/指向正确的方向。

NSArray *morningArray = [NSArray arrayWithObjects:
                   [NSDictionary dictionaryWithObjects:@[@"apples",@"1",@"sour"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],
                   [NSDictionary dictionaryWithObjects:@[@"oranges",@"3",@"sweet"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],
                   [NSDictionary dictionaryWithObjects:@[@"bananas",@"7",@"filling"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],nil];

NSArray *wholeDayArray = [NSArray arrayWithObjects:
                   [NSDictionary dictionaryWithObjects:@[@"apples",@"2",@"very sour"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],
                   [NSDictionary dictionaryWithObjects:@[@"oranges",@"3",@"slightly bitter"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],
                   [NSDictionary dictionaryWithObjects:@[@"bananas",@"8",@"filling"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],
                   [NSDictionary dictionaryWithObjects:@[@"pineapples",@"1",@"very sweet"]
                                               forKeys:@[@"fruit",@"totalNumberConsumed",@"comments"]],nil];

NSArray *whatsNewSinceMorningArray;
//Should end up with ["apples","1","very sour"],["bananas","1","filling"],["pineapples","1","very sweet"]
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