You don't need to explicitly add the button to the frame; merely identifying the frame as the parent container does the trick.
不必显式地将按钮添加到框架，只要将框架标识为父容器就可以了。
2
Trick bypass hangs Green button;
伎俩绕过挂绿色按钮；
3
Break the trick: in the magic View seller if sold payment, such as the seller has paid the order display a blue shipping button, the buyer paid to delivery.