1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Windows.Forms;
  10. namespace WindowsFormsApplication1
  11. {
  12.       public partial class Form1 : Form
  13.       {
  14.           public Form1()
  15.           {
  16.               InitializeComponent();
  17.           }
  19.           private void button1_Click(object sender, EventArgs e)
  20.           {
  21.               localhost.Service t = new WindowsFormsApplication1.localhost.Service();
  22.               MessageBox.Show(t.HelloWorld());
  23.               MessageBox.Show("Down!");
  24.           }
  26.           private void button2_Click(object sender, EventArgs e)
  27.           {
  28.               localhost.Service t = new WindowsFormsApplication1.localhost.Service();
  29.               t.HelloWorldCompleted += new WindowsFormsApplication1.localhost.HelloWorldCompletedEventHandler(t_HellowordCompleted);
  30.               t.HelloWorldAsync();
  31.               MessageBox.Show("Down!");
  32.           }
  33.           private void t_HellowordCompleted(object sender, localhost.HelloWorldCompletedEventArgs e)
  34.           {
  35.               MessageBox.Show(e.Result.ToString());
  36.           }
  38.           private void button3_Click(object sender, EventArgs e)
  39.           {
  40.               MessageBox.Show((new localhost.Service()).GetTime());
  41.           }
  42.       }
  43. }
  44. －－－－－－－－－－－－－－－－－－－－－webService----------------------------
  45. using System;
  46. using System.Linq;
  47. using System.Web;
  48. using System.Web.Services;
  49. using System.Web.Services.Protocols;
  50. using System.Xml.Linq;
  51. using System.Threading;
  53. [WebService(Namespace = "http://tempuri.org/")]
  54. [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  55. // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
  56. // [System.Web.Script.Services.ScriptService]
  57. public class Service : System.Web.Services.WebService
  58. {
  59.      public Service () {
  61.          //Uncomment the following line if using designed components 
  62.          //InitializeComponent(); 
  63.      }
  65.      [WebMethod]
  66.      public string HelloWorld() {
  67.          Thread.Sleep(3000);
  68.          return "Hello World";
  69.      }
  70.     ////缓存10秒
  71.      [WebMethod(false,System.EnterpriseServices.TransactionOption.NotSupported,10)]
  72.      public string GetTime()
  73.      {
  74.          return DateTime.Now.ToString();
  75.      }
  76.     
  77. }