排序

1.数字类型 －－降序

NSArray *array = [self.dataArraysortedArrayUsingComparator:^NSComparisonResult(GoodKCMXHZ *obj1,GoodKCMXHZ *obj2) {

            return [obj1.sku_numintegerValue]<[obj2.sku_numintegerValue];

        }];

数字类型 －－升序

NSArray *array = [self.dataArraysortedArrayUsingComparator:^NSComparisonResult(GoodKCMXHZ *obj1,GoodKCMXHZ *obj2) {

            return [obj1.sku_numintegerValue]>[obj2.sku_numintegerValue];

        }];

2.字符串、时间－－降序

 NSArray *dataArray = [newDataArraysortedArrayUsingComparator:^NSComparisonResult(shouAndFuM *obj1,shouAndFuM *obj2) {

                    return [obj2.order_createdcompare:obj1.order_created];

                }];

字符串、时间－－升序

NSArray *dataArray = [newDataArray sortedArrayUsingComparator:^NSComparisonResult(shouAndFuM *obj1, shouAndFuM *obj2) {

                    return [obj1.order_created compare:obj2.order_created];

                }];