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创建后进入VS2010程序界面，在ExcelWorkbookCSDN.xlsx中插入一个webbrower,textbox,button,

双击button,插入下列代码

using System;  
using System.Collections.Generic;  
using System.Data;  
using System.Linq;  
using System.Text;  
using System.Windows.Forms;  
using System.Xml.Linq;  
using Microsoft.Office.Tools.Excel;  
using Microsoft.VisualStudio.Tools.Applications.Runtime;  
using Excel = Microsoft.Office.Interop.Excel;  
using Office = Microsoft.Office.Core;  
using Microsoft.Office.Interop;  
using Microsoft.Office.Core;  
 
namespace ExcelWorkbookCSDN  
{  
    public partial class Sheet1  
    {  
        private void Sheet1_Startup(object sender, System.EventArgs e)  
        {  
            
        }  
 
        private void Sheet1_Shutdown(object sender, System.EventArgs e)  
        {  
        } 
 
        #region VSTO Designer generated code  
 
        /// <summary>  
        /// Required method for Designer support - do not modify  
        /// the contents of this method with the code editor.  
        /// </summary>  
        private void InternalStartup()  
        {  
            this.button1.Click += new System.EventHandler(this.button1_Click);  
            this.Startup += new System.EventHandler(this.Sheet1_Startup);  
            this.Shutdown += new System.EventHandler(this.Sheet1_Shutdown);  
 
        } 
 
        #endregion  
 
        private void button1_Click(object sender, EventArgs e)  
        {  
            this.webBrowser1.Navigate(this.textBox1.Text);  
        }  
 
    }  
} 

按下F5开始调试

运行后界面如下，Excel文档打开了以后，文档内嵌一个浏览器

点击登录按钮即可观看想要浏览的网页