service.Config.GetConfig C# (CSharp) Method

        public static string GetConfig(string name)
        {
            if (configs == null)
            {
                configs = new Dictionary<string, string>();
                //从文件里获取所有配置
                StreamReader sr = new StreamReader("card.ini");
                string s;
                while ((s = sr.ReadLine()) != null)
                {
                    string[] str = s.Split('=');
                    configs[str[0]] = str[1];
                }
            }
            string ret = configs[name];
            return ret;
        }
    }

 void worker_DoWork(object sender, DoWorkEventArgs e)
 {
     Log.Debug("in do work");
     try
     {
         //获取本地端口号，波特率
         Port = short.Parse(Config.GetConfig("Port"));
         Baud = int.Parse(Config.GetConfig("Baud"));
         Log.Debug("Port,Baud" + Port + Baud);
         //获取后台ip地址
         string ip = Config.GetConfig("RemoteIP");
         //从后台获取所有文件信息
         WebClient client = new WebClient();
         string    str    = client.DownloadString(ip + "/rs/card");
         Log.Debug("download str" + str);
         string[] infos = str.Split('|');
         //对于每一个文件，检查时间是否一致，不一致则到后台获取文件
         foreach (string item in infos)
         {
             string[] items = item.Split(',');
             string   fpath = items[0];
             Log.Debug("find fpath is " + fpath);
             long     ftime    = long.Parse(items[1]);
             DateTime from1970 = new DateTime(1970, 1, 1, 8, 0, 0, DateTimeKind.Local);
             DateTime time     = from1970.AddMilliseconds(ftime);
             //如果与本地文件时间不同，去后台获取文件
             int    index = fpath.LastIndexOf('\\');
             string fname = fpath.Substring(index + 1);
             Log.Debug("find fname is " + fname);
             DateTime local = File.GetLastWriteTime(fname);
             Log.Debug("time = " + time.ToString());
             Log.Debug("local = " + local.ToString());
             if (local != time)
             {
                 Log.Debug("load file " + fname);
                 client.DownloadFile(ip + "/rs/card/" + fpath.Replace("\\", "^"), fname);
                 File.SetLastWriteTime(fname, time);
             }
         }
         //加载xaml文件
         StreamReader       reader = new StreamReader("Card.xaml");
         string             s      = reader.ReadToEnd();
         ResourceDictionary dic    = (ResourceDictionary)XamlServices.Parse(s);
         Cards = (CardInfos)dic["CardInfos"];
         Log.Debug(Cards.Count + "");
     }
     catch (Exception ex)
     {
         Log.Debug(ex.Message);
     }
 }