做个备份，以备不时之需，个人觉得这个方法比较好用

-(void)clickCellButtonMethod:(UIButton *)btn WithEvent:(id)event

{

//取到 button所在的cell的indexPath

NSSet *touches =[event allTouches];

UITouch *touch =[touches anyObject];

CGPoint currentTouchPosition = [touch locationInView:self.tableView];

NSIndexPath *indexPath= [self.tableView indexPathForRowAtPoint:currentTouchPosition];

if (indexPath != nil)

{

//do something

}

}