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里某個參數(shù)讹挎，針對數(shù)據(jù)進行升序降序排序
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:
