private void btn_Click(object sender, EventArgs e)
        {
            string url = "http://www.aastocks.com/SC/Stock/CompanyFundamental.aspx?CFType=8&symbol=";
            string[] stra = new string[5];
            stra[0] = url+"00001";
            stra[1] = url+"00002";
            stra[2] = url+"00003";
            stra[3] = url+"00004";
            stra[4] = url+"00005";
            GetHtml(stra);
        }

        bool loading = true;   //该变量表示网页是否正在加载.

        string html = string.Empty;

        //WebBrowser browser = new WebBrowser();

        public void GetHtml(string[] urls)
        {

            this.webBrowser1.Navigated += new WebBrowserNavigatedEventHandler(browser_Navigated);

            foreach (string url in urls)
            {

                loading = true;  //表示正在加载

                webBrowser1.Navigate(url);

                while (loading)
                {

                    Application.DoEvents();//等待本次加载完毕才执行下次循环.

                }

            }

        }

        void browser_Navigated(object sender, WebBrowserNavigatedEventArgs e)
        {

            html = webBrowser1.DocumentText;  //获取到的html.

            loading = false;//在加载完成后,将该变量置为false,下一次循环随即开始执行.

        }