所有链接都在webbrowser里弹出

        public  void SetAllWebItemSelf(HtmlElementCollection items)
        {
            try
            {
                foreach (HtmlElement item in items)
                {
                    if (item.TagName.ToLower().Equals("iframe", StringComparison.OrdinalIgnoreCase) == false)
                    {
                        try
                        {
                            item.SetAttribute("target", "_self");
                        }
                        catch
                        { }
                    }
                    else
                    {
                        try
                        {
                            HtmlElementCollection fitems = item.Document.Window.Frames[item.Name].Document.All;

                            this.SetAllWebItemSelf(fitems);
                        }
                        catch
                        { }
                    }
                }
            }
            catch
            {
            }
        }

使用时： SetAllWebItemSelf(this.webBrowser1.Document.All);