C#:读取html模板文件，并替换修改文件中指定值，保存为修改后的文件

1.准备html模板文件：Pages/Device/DeviceModel8.html

2 using System.IO:读取文件内容，并替换指定内容

                        Div1.InnerHtml = "";
                        Stream myStream = new FileStream(HttpContext.Current.Server.MapPath(@"~/Pages/Device/DeviceModel8.html"), FileMode.Open);
                        Encoding encode = System.Text.Encoding.GetEncoding("GB2312");
                        StreamReader myStreamReader = new StreamReader(myStream, encode);
                        string strhtml = myStreamReader.ReadToEnd();
                        string stroutput = strhtml.Replace("$[Formitem0]$", "要替换的内容");
                        myStream.Seek(0, SeekOrigin.Begin);
                        myStream.SetLength(0);
                        StreamWriter sw = new StreamWriter(myStream, encode);
                        sw.Write(stroutput);
                        sw.Flush();
                        sw.Close();
                        myStream.Close();
                        Div1.InnerHtml = stroutput;

https://www.cnblogs.com/wangyt223/archive/2012/08/17/2643851.html