//滑动过程中
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
// NSLog(@"000---%ld",ysetoLoad);
UICollectionView *ta = (UICollectionView *)scrollView;
NSArray *Vells = [ta visibleCells];
NSIndexPath *dex = [ta indexPathForCell:Vells[0]];
NSLog(@"--11 %ld",dex.section);
NSLog(@"ysetoLoad%@",Vells[0]);
CGFloat scrValue = ta.bounds.origin.y;
NSLog(@"--00 %f",scrValue);
}