请问怎么改呀？？

woaitbtfx1

Params
   Numeric ExitOnCloseMins(15.01);//平仓时间
   Numeric LastTradeMins(15.00);//最后交易时间
   Numeric BeginTradeMins(9.31);
   //Numeric Lots(1);
   //Numeric Stoplossset(1);
Vars

  Numeric MyPrice;
  //Numeric cc;
  //Numeric oo;
  
Begin
CC=GetCloseFromTrader(150287);
OO=GetOpenFromTrader(150287);

我想取钢铁的开盘价和收盘价，，结果说是GETCLOSETRADER没有声明？？请问怎么改呀？？先谢了