#pragma mark -禁止section停留
- (void)scrollViewDidScroll:(UIScrollView*)scrollView {
? ? CGFloatsectionHeaderHeight =50;
? ? if(scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {
? ? scrollView.contentInset=UIEdgeInsetsMake(-scrollView.contentOffset.y,0,0,0);
? ? }elseif(scrollView.contentOffset.y>=sectionHeaderHeight) {
? ? scrollView.contentInset=UIEdgeInsetsMake(-sectionHeaderHeight,0,0,0);
? ?}
}