设计一个21点的扑克牌游戏，玩家一共可以要5张牌，但如果牌的点数超过21，则暴了，自动出局；在不超过21点的情况下，玩家与庄家比牌的点数大小，大者为赢。-Design of a 21-point poker game, players can be to a total of five licenses, but if more than 21 points a license, then violence, and automatic out in no more than 21 o clo