仅针对一副牌有效，可以手动记录出过的牌，对于剩余牌可以做到一目了然，在斗地主、跑的快等一副牌的游戏中比较有用。-Valid only for a deck of cards, you can manually record the cards, the remaining cards can be done at a glance, Landlords, run a card game more useful.