一、手动设置

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row==self.dataArray.count-1) {
        if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
            [cell setSeparatorInset:UIEdgeInsetsZero];
        }
        
        if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
            [cell setLayoutMargins:UIEdgeInsetsZero];
        }
    }

}

/**
 *  布局视图
 */
-(void)viewDidLayoutSubviews
{
    if ([self.myTableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [self.myTableView setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];
    }
    
    if ([self.myTableView respondsToSelector:@selector(setLayoutMargins:)]) {
        [self.myTableView setLayoutMargins:UIEdgeInsetsMake(0,0,0,0)];
    }
}

二、使用第三方ESSeparatorInset分类

UITableView 隐藏最后一条分割线-->footerView高度0.1)

ESSeparatorInset分类一行代码搞定

UIView

UIViewController+ESSeparatorInset.h
UIViewController+ESSeparatorInset.m