NSArray *originalArray = @[@1,@2666661,@12,@11,@0];    //block比较方法，数组中可以是NSInteger，NSString（需要转换）    NSComparator finderSort = ^(id string1,id string2){                if ([string1 integerValue] > [string2 integerValue]) {            return (NSComparisonResult)NSOrderedDescending;        }else if ([string1 integerValue] < [string2 integerValue]){            return (NSComparisonResult)NSOrderedAscending;        }        else            return (NSComparisonResult)NSOrderedSame;    };        //数组排序：    NSArray *resultArray = [originalArray sortedArrayUsingComparator:finderSort];    NSInteger i = resultArray.count - 1;    NSLog(@"排序结果：%@",resultArray);    NSLog(@"排序结果最大：%@",resultArray[i]);    NSLog(@"排序结果最小：%@",resultArray[0]);