判断顺子的方法

        /// <summary>
        /// 检查顺子
        /// </summary>
        /// <param name="cards">排序后的原始牌</param>
        /// <param name="kingCount">癞子数量</param>
        /// <param name="handCards">比较牌</param>
        /// <returns></returns>
        public static bool CheckStraight(List<int> cards, int kingCount, out List<int> handCards)
        {
            handCards = new List<int>();
            var cards2 = cards.Take(cards.Count - kingCount).ToList();
            for (int i = 0; i < cards2.Count; i++)
            {
                var pre = cards2[i];
                handCards.Add(pre);
                if (i == cards2.Count - 1)
                {
                    break;
                }
                var cur = cards2[i + 1];
                var interval = (cur%100) - (pre%100);
                if (interval == 1)
                {
                    continue;
                }
                else if(interval>1&&kingCount > 0)
                {
                    pre = pre % 100;
                    while (interval > 1)
                    {
                        if (kingCount<=0)
                        {
                            return false;
                        }
                        kingCount--;
                        pre++;
                        handCards.Add(pre);
                        interval--;
                    }
                }
                else
                {
                    return false;
                }
            }
            if (kingCount>0)
            {
                var first = handCards.First();
                var last=handCards.Last();
                while (14-(last%100)>0&&kingCount>0)//先从后面补
                {
                    var newlast = (last % 100) + 1;
                    handCards.Add(newlast);
                    kingCount--;
                    last = newlast;
                }
                if (kingCount > 0)//最后从前面补
                {
                    while ((first%100)-2>0&&kingCount>0)
                    {
                        var newfirst = (first % 100) - 1;
                        handCards.Insert(0, newfirst);
                        kingCount--;
                        first = newfirst;
                    }
                }
            }
            handCards.Reverse();
            return true;
        }

例如:110,212,113,癞子,癞子

110%100 表示10

110/100   表示花色,方块