asp.net 手機號碼所在地查詢實現代碼

用浏覽器打開手機號碼查詢的網站，同以上步驟找到他調用的地址，最後編寫代碼如下：

 代碼如下
using System;
using System.Windows.Forms;
using System.Xml;
namespace HnVote
{
    public partial class Mobile : Form
    {
        public Mobile()
        {
            InitializeComponent();
        }
        private  static string[] GetMobileInfo(string number)
        {
            try
            {
                XmlDocument xmlDocument = new XmlDocument();
                xmlDocument.Load("http://api.showji.com/Locating/default.aspx?m=" + number);
                XmlNamespaceManager cx = new XmlNamespaceManager(xmlDocument.NameTable);
                cx.AddNamespace("content", "http://api.showji.com/Locating/");
                XmlNodeList nodes = xmlDocument.SelectNodes 

            ("//content:QueryResult|//content:Mobile|//content:Province|//content:City|//

            content:Corp|//content:Card|//content:AreaCode|//content:PostCode", cx);
                if (nodes.Count == 8)
                {
                    if ("True".Equals(nodes[1].InnerText))
                    {
                        return new string[]
                                   {
                                       nodes[0].InnerText, nodes[2].InnerText, nodes[3].InnerText, nodes[4].InnerText,
                                       nodes[5].InnerText, nodes[6].InnerText + nodes[7].InnerText
                                   };
                    }
                }
                return new string[] { "false" };
            }
            catch (Exception)
            {
                return new string[] { "false" };
            }
        }
        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                string[] num = GetMobileInfo(textBox1.Text);
                MessageBox.Show("所查號碼：" + num[0] + "n歸屬省份：" + num[1] + "n歸屬城市：" + num[2] + "n城市區號：" + num[3] + "n城市郵編：" +
                                num[4] + "n卡 類 型：" + num[5], "查詢結果", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message,"錯誤提示",MessageBoxButtons.OK,MessageBoxIcon.Warning);
            }
        }
        private void textBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if(e.KeyCode==Keys.Enter)
            {
                button1_Click(sender,e);
            }
        }
    }
}  
 

界面：