程序代码：

       
        /// <summary>
        /// 返回相加
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public int GetSum(int[] s)
        {
            int result = 0;
            for(int i=0;i<s.Length;i++)
            {
                result += s[i];
            }
            return result;
        }

E.G：           
int[] abc={1,2,3,4,5,6};
            MessageBox.Show(GetSum(abc).ToString());