程序功能和实现：玩家和电脑对战，先生成一个包扩所有牌的单链表。洗牌后按顺序发牌，玩家和电脑各一张，比较玩家和电脑手中的牌的大小玩家可在平局区或大小区下注，平局赔率为10，大小区为赔率1记录局数和玩家每盘后的点数。-Program features and implementation: the player and play against the computer, sir, all the cards into a single package extended list. After sh