点击Cell中的按钮时，如何取所在的Cell

点击Cell中的按钮时，如何取所在的Cell：

-(void)OnTouchBtnInCell:(UIButton *)btn 
{ 
CGPoint point = btn.center; 
point = [table convertPoint:point fromView:btn.superview]; 
NSIndexPath* indexpath = [table indexPathForRowAtPoint:point]; 
UITableViewCell *cell = [table cellForRowAtIndexPath:indexpath];