NSArray *AllData=[WeatherNewModel objectArrayWithKeyValuesArray:jsonObject];

NSSortDescriptor *priceDescriptor = [NSSortDescriptor

sortDescriptorWithKey:@"signalOrder"

ascending:YES

selector:@selector(compare:)];

NSSortDescriptor *modelDescriptor = [NSSortDescriptor

sortDescriptorWithKey:@"paramCode"

ascending:YES

selector:@selector(caseInsensitiveCompare:)];

NSArray *descriptors = @[priceDescriptor, modelDescriptor];

NSArray *sortArray=[AllData sortedArrayUsingDescriptors:descriptors];

根據(jù)Model里某個(gè)參數(shù)，針對(duì)數(shù)據(jù)進(jìn)行升序降序排序

如果待比較的屬性是字符串(NSString)類型, 可使用其默認(rèn)的方法: localizedStandardCompare: