message: remove the port txt while server restarting
diff: * Copyright 2021 gStore, All Rights Reserved.
  * @Author: Bookug Lober suxunbin liwenjie
  * @Date: 2021-08-22 00:37:57
  - * @LastEditTime: 2021-09-09 21:39:16
  + * @LastEditTime: 2021-09-17 20:38:48
  * @LastEditors: Please set LastEditors
  * @Description: the http server to handler the user's request, which is main access entrance of gStore
  * @FilePath: /gstore/Main/ghttp.cpp
  @@ -770,6 +770,11 @@ int main(int argc, char *argv[])
  }
  else
  {
  + if (Util::file_exist("system.db/port.txt"))
  + {
  + string cmd = "rm system.db/port.txt";
  + system(cmd.c_str());
  + }
  cerr << "Server stopped abnormally, restarting server..." << endl;
  //break;
  }
  