java写的黑杰克游戏，课程设计，支持多个玩家和牌的花色变化。K、Q、J 和 10 牌都算作 10 点。 A 牌既可算作1 点也可算作11 点。牌加起来超过21点，玩家就输了，叫爆掉(Bust)。玩家可以叫牌也可以增加赌注，要求开牌等-Black Jack game written in java, curriculum design, support for multiple players and change color cards. K, Q, J, and 10 cards are c