小排序

            string[] arry = new string[5];
            arry[0] = "广东|30";
            arry[1] = "湖南|20";
            arry[2] = "广西|60";
            arry[3] = "北京|70";
            arry[4] = "上海|30";
            for (int i = 0; i < arry.Length-1; i++)
            {
                for (int j = i; j < arry.Length-1; j++)
                {
                    int num1=Convert.ToInt32(arry[j].Split('|')[1]);
                    int num2 = Convert.ToInt32(arry[j+1].Split('|')[1]);
                    if (num1>num2)
                    {
                        string temp = arry[j];
                        arry[j] = arry[j+1];
                        arry[j + 1] = temp;
                    }
                }
            }

            foreach (string item in arry)
            {
                Response.Write(item + "<br />");
            }