Implementation code of asp.net mobile phone number location query

Open the mobile phone number Query website in a browser, find the address he called in the preceding steps, and write the code as follows:

The code is as follows:

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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 button#click (object sender, EventArgs e)         { Try             { String [] num = GetMobileInfo (textBox1.Text ); MessageBox. show ("number:" + num [0] + "n province:" + num [1] + "n city: "+ num [2] +" n city code: "+ num [3] +" n city code: "+ Num [4] + "n card type:" + num [5], "query result", MessageBoxButtons. OK, MessageBoxIcon. Information );             } Catch (Exception ex)             { MessageBox. Show (ex. Message, "error prompt", MessageBoxButtons. OK, MessageBoxIcon. Warning );             }         } Private void textBox1_KeyDown (object sender, KeyEventArgs e)         { If (e. KeyCode = Keys. Enter)             { Button#click (sender, e );             }         }     } }

Interface: