怎样让scrollview滚动到底部？

- (void)scrollsToBottomAnimated:(BOOL)animated
{
    CGFloat offset = self.tableView.contentSize.height - self.tableView.bounds.size.height;
    if (offset > 0)
    {
        [self.tableView setContentOffset:CGPointMake(0, offset) animated:animated];
    }
}