O(∩_∩)O 你把轮播图那个View

 [self.collectionView registerClass:[lunboView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:findCollectionViewSectionHeaderIdentifier];

其中lunboView继承与UICollectionReusableView

 - (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
    lunboView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:findCollectionViewSectionHeaderIdentifier forIndexPath:indexPath];
    }

你把你的轮播View加到新建的那个View中就行了