用浏览器打开手机号码查询的网站，同以上步骤找到他调用的地址，最后编写代码如下：
代码如下
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("所查号码：" + num[0] + "n归属省份：" + num[1] + "n归属城市：" + num[2] + "n城市区号：" + num[3] + "n城市邮编：" +
num[4] + "n卡 类 型：" + num[5], "查询结果", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message,"错误提示",MessageBoxButtons.OK,MessageBoxIcon.Warning);
}
}
private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter)
{
button1_Click(sender,e);
}
}
}
}
界面：
