C#之CSV格式实时记录数据

/// <summary>
            /// 保存数值
            /// </summary>
            /// <param name="strs">strs为对应的参数字符,值之间用","隔开</param>
            public static void SaveCsvData(string strs)
            {
                //当前是根据日期每天生成一个,所以在记录之前需要判断是否已经存在文件
                string paths = AppDomain.CurrentDomain.BaseDirectory + "\\Report\\";
                string filename = paths + DateTime.Now.ToString("yyyy-MM-dd") + ".CSV";
                if (!Directory.Exists(paths))
                {
                    Directory.CreateDirectory(paths);
                }
                //string logPath = paths + file + ".csv";
                if (!File.Exists(paths + DateTime.Now.ToString("yyyy-MM-dd") + ".CSV"))
                {

                    //判断是否存在，若不存在，则首先添加Hearder
                    string ColumnHead = "产品条码,定位特征分数,定位特征X,定位特征Y,形状特征分数,形状特征X,形状特征Y,总检测结果";
                    FileStream fs1 = new FileStream(filename, FileMode.Create, FileAccess.Write);//创建写入文件
                    StreamWriter sw1 = new StreamWriter(fs1, Encoding.Default);
                    //"\r\n"回车换行,下一条记录直接换行
                    sw1.Write(ColumnHead + "\r\n");
                    sw1.Close();
                    fs1.Close();

                }
                FileStream fs = new FileStream(filename, FileMode.Append, FileAccess.Write);//创建写入文件
                StreamWriter sw = new StreamWriter(fs, Encoding.Default);

                sw.Write(strs + "\r\n");
                sw.Close();
                fs.Close();
            }