private void button1_Click(object sender, EventArgs e)
        {
            int t = Convert.ToInt32(textBox1.Text);//获取输入的数字
            List<int> lInt = new List<int>();
            for (int i = 1; i <= t; i++)
                lInt.Add(i);
            lInt = js(1, 0, lInt);//运算
            foreach (int v in lInt)
            {
                textBox2.Text += v + "\t";//输出结果
            }
        }

/// <summary>
        /// 
        /// </summary>
        /// <param name="i">报数</param>
        /// <param name="index">value下标</param>
        /// <param name="value"></param>
        /// <returns></returns>
        private List<int> js(int i, int index, List<int> value)
        {
            if (value.Count < 3)
                return value;
            if (i == 3)
            {
                value.RemoveAt(index);
                return js(i++, index, value);
            }
            else
            {
                index++;
                if (index >= value.Count)
                    index = 0;
                return js(i++, index, value);
            }
        }