写日志文件

string fpath = HttpContext.Current.Server.MapPath("~/Growth/Error.txt");                    string createText = "";                    createText += "时间：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + Environment.NewLine;                    createText += "园ID：" + gid + Environment.NewLine;                    createText += "类型：" + snumber + Environment.NewLine;                    createText += "文件后缀：" + type + Environment.NewLine;

                    if (!File.Exists(fpath))                    {                        File.WriteAllText(fpath, createText,System.Text.Encoding.GetEncoding("gb2312"));                    }                    File.AppendAllText(path, createText, System.Text.Encoding.GetEncoding("gb2312"));