protected override void Render(HtmlTextWriter writer)
{
//把最終要輸出的html壓縮后再輸出
StringWriter html = new StringWriter();
HtmlTextWriter tw = new HtmlTextWriter(html);
base.Render(tw);
string outhtml = html.ToString();
outhtml = Regex.Replace(outhtml, "\\s+", " ");
outhtml = Regex.Replace(outhtml, ">\\s+<", "><");
outhtml = outhtml.Trim();
writer.Write(outhtml);
}

protected override void Render(HtmlTextWriter writer)
{
//最終輸出前先存為html文件，如果發(fā)布最新信息了，可以打開一次default.aspx,然后他又會生成一次html

//這是默認的Render實現(xiàn)，直接輸出到writer中
//base.Render(writer);
StringWriter html = new StringWriter();
HtmlTextWriter tw = new HtmlTextWriter(html);
//通過base.Render()方法，把生成的HTML寫入到我們定義的tw中
base.Render(tw);
string path = Server.MapPath("index.html");
StreamWriter sw = new StreamWriter(path, false, System.Text.Encoding.Default);
//寫入到文件中
sw.Write(html.ToString());
sw.Close();
//寫入到writer中，以輸出頁面的HTML
//注意，這里不能再調(diào)用base.Render(writer)，會出現(xiàn)錯誤
writer.Write(html.ToString());
}