.net core 将错误抛出写入.txt文件

        #region 写入文件 如果存在该文件就递加，如果不存在就新建
        /// <summary>
        /// 写入文件
        /// </summary>
        /// <param name="Path">文件路径</param>
        /// <param name="content">文件内容</param>
        //调用示例
        //string webRootPath = _hostingEnvironment.WebRootPath;  //获取相对路径
        //string strUploadPath = webRootPath + "/Document/";
        //string fileLogName = "错误日志" + DateTime.Now.ToLongDateString() + "Log.txt";
        //WriteFile(strUploadPath + fileLogName, "测试内容");
        public static void WriteFile(string path, string content)
        {
            if (!System.IO.File.Exists(path))
            {
                System.IO.FileStream f = System.IO.File.Create(path);
                f.Close();
            }
            System.IO.StreamWriter f2 = new System.IO.StreamWriter(path, true, System.Text.Encoding.GetEncoding("gb2312"));
            f2.WriteLine(content);
            f2.Close();
            f2.Dispose();
        }
        #endregion