＜html＞ 
＜head＞ 
＜title＞＜/title＞ 
＜meta http-equiv="Content-Type" content="text/html; charset=gb2312"＞ 
＜/head＞ 
＜body ＞ 
＜table $htmlformat[0] height="100%" border="0" width="100%" cellpadding="10" cellspacing="0" bgcolor="#eeeeee" style="border:1px solid #000000"＞ 
＜tr＞ 
＜td width="100%" valign="middle" align="left"＞ 
＜span style="color: $htmlformat[1];font-size: $htmlformat[2]"＞$htmlformat[3]＜/span＞ 
＜/td＞ 
＜/tr＞ 
＜/table＞ 
＜/body＞ 
＜/html＞  

string[] format=new string[4];//定义和htmlyem标记数目一致的数组 
StringBuilder htmltext=new StringBuilder(); 
try 
{ 
　using (StreamReader sr = new StreamReader("存放模板页面的路径和页面名")) 
　{ 
　　String line; 
　　while ((line = sr.ReadLine()) != null) 
　　{ 
　　　htmltext.Append(line); 
　　} 
　　sr.Close(); 
　} 
} 
catch 
{ 
　Response.Write("＜Script＞alert('读取文件错误')＜/Script＞"); 
} 

//---------------------给标记数组赋值------------ 

format[0]="background="bg.jpg"";//背景图片 
format[1]= "#990099";//字体颜色 
format[2]="150px";//字体大小 
format[3]= "＜marquee＞生成的模板html页面＜/marquee＞";//文字说明 
//----------替换htm里的标记为你想加的内容 
for(int i=0;i＜4;i++) 
{ 
　htmltext.Replace("$htmlformat["+i+"]",format[i]); 
} 

//----------生成htm文件------------------―― 

try 
{ 
　using(StreamWriter sw=new StreamWriter("存放路径和页面名",false,System.Text.Encoding.GetEncoding("GB2312"))) 
{ 
　sw.WriteLine(htmltext); 
　sw.Flush(); 
　sw.Close(); 
} 

} 

catch 

{ 

Response.Write ("The file could not be wirte:"); 

}  

标题：<asp:TextBox ID="txtTitle" runat="server" Width="352px"></asp:TextBox><br />
        内容：<asp:TextBox ID="txtContent" runat="server" Height="179px" TextMode="MultiLine"
            Width="350px"></asp:TextBox><br />
        <br />
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="生成" /><br />

protected void Button1_Click(object sender, EventArgs e)
    {
        string mbPath = Server.MapPath("template.htm");
        Encoding code = Encoding.GetEncoding("gb2312");
        StreamReader sr = null;
        StreamWriter sw = null;
        string str = null;
        try
        {
            sr = new StreamReader(mbPath, code);
            str = sr.ReadToEnd();

        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            sr.Close();
        }
        string fileName = DateTime.Now.ToString("yyyyMMddHHmmss") + ".html";
        str = str.Replace("$title$", this.txtTitle.Text);
        str = str.Replace("$content$", this.txtContent.Text);

        try
        {
            sw = new StreamWriter("M:\\" + fileName, false, code);
            sw.Write(str);
            sw.Flush();

        }
        catch (Exception ee)
        {
            throw ee;

        }
        finally
        {
            sw.Close();
            Response.Write("<a href=M:\\" + fileName + " target=_blank>" + fileName + "</a>已经生成，保存在htm文件夹下！");
        }
    }