1 //1.1 生成文件名和设置文件物理路径 2         Random random = new Random(DateTime.Now.Millisecond); 3         string fileName = System.DateTime.Now.ToString("yyMMddHHmmss")+random.Next(10000); 4         string PhysicalPath = Server.MapPath("../File/Template/productDetails/" + fileName + ".txt"); 5  6         //1.2 判断文件是否存在 7         if (!File.Exists(PhysicalPath)) 8         { 9             FileStream fs = new FileStream(PhysicalPath, FileMode.Create);10             StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.UTF8);11             sw.Write(proDetails);12             sw.Close();13             fs.Close();14         }15         else16         {17             Page.ClientScript.RegisterStartupScript(this.GetType(), "addAtt", "<script>alert(‘添加失败，请重试！‘);location.href=http://www.mamicode.com/‘#‘</script>");18         }

 1 //将商品详情写入文件中 2         string detailsPath=CreateFile(proDetails); 3         string filePath = Server.MapPath("../File/Template/productDetails/" + detailsPath+".txt"); 4             if (File.Exists(url)) 5             { 6                 // Create the file. 7                 using (FileStream fs=new FileStream(url,FileMode.Open)) 8                 { 9                    StreamReader sr=new StreamReader(fs,Encoding.Default);10                    this.aaa.InnerHtml = sr.ReadToEnd();11                    sr.Close();12                 }13             }

1 //1.1 生成文件名和设置文件物理路径2         string phpPath=Server.MapPath(path);3         if (File.Exists(phpPath))4         {5             File.Delete(phpPath);6         }