相对路径产生js文件、html文件。

 
关键字：Split()、.Replace()、MapPath()。
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;
namespace new_app
{
 /// <summary>
 /// myxml 的摘要说明。
 /// </summary>
 public class myxml : System.Web.UI.Page
 {
    private void Page_Load(object sender, System.EventArgs e)
    {
     // 在此处放置用户代码以初始化页面    
     write_file();
    }
    public void write_file()
    {
     string filename="file.js";
     DateTime dtstr = DateTime.Now;
     string fileNameString = MapPath(filename);
     Regex r = new Regex(" ");
     Regex r2 = new Regex("-");
     Regex r3 = new Regex(":");
     string[] s = r.Split(dtstr.ToString()); 
     string[] s2 = r2.Split(s[0]);
     string[] s3 = r3.Split(s[1]); 
     string qname=s2[0]+s2[1]+s2[2]+s3[0]+s3[1]+s3[2]+".htm";
     string fileNameString2 = MapPath(qname);
     string errString = "我的盐城热线！";
     string correctString = errString.Replace("热线", "信息港");
     Response.Write(correctString);

补充：asp教程,高级应用