private void Form1_Load(object sender, EventArgs e)

        {

            this.webBrowser1.Navigate(Application.StartupPath + @"\HTMLPage1.htm");

        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

        {

            HtmlDocument htmlDocument = webBrowser1.Document;

            HtmlElement btnElement = htmlDocument.All["Button1"];

            if (btnElement != null)

            {

                btnElement.Click += new HtmlElementEventHandler(btnElement_Click);

            }

            btnElement = htmlDocument.All["Button2"];

            if (btnElement != null)

            {

                btnElement.Click += new HtmlElementEventHandler(btnElement_Click);

            }

        }

        public void btnElement_Click(object sender, HtmlElementEventArgs e)

        {

            HtmlElement element = sender as HtmlElement;

            if (element.Id == "Button1")

            {

                MessageBox.Show("第一個按鈕");

　　　　　　　　　　System.Diagnostics.Process.Start("explorer.exe", "http://www.baidu.com");
            }

            else if (element.Id == "Button2")

            {

                MessageBox.Show("第二個按鈕");

　　　　　　　　　System.Diagnostics.Process.Start(@"C:\Users\Fish\Desktop\Debug\WindowsFormsApplication1.exe");
            }

        }