再帮忙解释下一段代码

huayi4000 2017.10.23 13:56

void trall(int step)
  {
   if(MarketInfo(Symbol(), MODE_STOPLEVEL) > step * gPoint / Point) return;
   int ordersTotal=OrdersTotal();
   for(int i=ordersTotal-1; i>=0; i --)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        {
         if(OrderSymbol()==Symbol() && OrderMagicNumber()==magic)
           {
            setSl(step);
           }
        }
     }
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void setSl(int sl)
  {
   double _sl=0.0;
   if(OrderType()==OP_BUY)
     {
      _sl=ND(Bid -(double)sl*gPoint);
      if(_sl <= OrderStopLoss()) return;
     }
   if(OrderType()==OP_SELL)
     {
      _sl=ND(Ask+(double)sl*gPoint);
      //Print("sl = ", sl, "  ordersl = ", OrderStopLoss());
      if(OrderStopLoss() != 0.0 && _sl >= OrderStopLoss()) return;
     }
   bool f=OrderModify(OrderTicket(),OrderOpenPrice(),_sl,OrderTakeProfit(),0);
  }

Jian Chen 2017.10.24 00:20 #1

这个代码就是为EA所建立的订单(仓位)设置移动止损(跟踪止损).

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