C#，方法，层拼接字符串

    /// <summary>
    /// 根据选择的起始层和最终层拼接字符串
    /// </summary>
    /// <returns></returns>
    private string GetSzcString()
    {
        List<string> chList = new List<string>();

        int qsc = 0;
        int zzc = 0;

        int.TryParse(this.comboQsc.SelectedItem.ToString(),out qsc);

        int.TryParse(this.comboZzc.SelectedItem.ToString(), out zzc);

        int cs = zzc - qsc;

        //起始层大于最终层
        if (cs < 0)
        {
            MessageBox.Show("起始层大于最终层");
            return "";
        }

        //根据起始层和层数进行循环
        for (int i = 0; i < cs + 1; i++)
        {
            int sjc = qsc + i;

            //判断实际层是否为0
            if (sjc == 0)
            {
                continue;
            }

            chList.Add(sjc.ToString());
        }

        if (chList.Count == 0)
        {
            return "";
        }

        return string.Join(",", chList);
    }