mql4检查订单是否存在多次执行

Question

我正在使用此代码检查我的代码中是否存在售价为buy1和sell1的订单。不知何故，一些订单被执行两次。不应该发生，因为我正在检查是否有任何与同一个公益组织的未结订单。任何人都能看到什么错？

bool CheckBuyOrder1(double buy1_tp){
for( int i = 0 ; i < OrdersTotal() - 1 ; i++ ) {
  OrderSelect( i, SELECT_BY_POS, MODE_TRADES );
  if( OrderTakeProfit() == buy1_tp && OrderComment() == "buy" ) 
return(true);
}
return(false);
}

bool CheckSellOrder1(double sell1_tp){
for( int i = 0 ; i < OrdersTotal() - 1 ; i++ ) {
  OrderSelect( i, SELECT_BY_POS, MODE_TRADES );
  if( OrderTakeProfit() == sell1_tp && OrderComment() == "sell" ) 
return(true);
}
return(false);
}

int totalOrders = OrdersTotal();

void OnTick()
{
if(totalOrders != OrdersTotal()){
double vbid    = MarketInfo("EURUSD",MODE_BID);
double bid = NormalizeDouble(vbid, 3);
double market_buy_tp = bid;
double buy1= bid + 0.002;
double buy1_tp= bid + 0.003;
if(CheckOpenOrders1(market_buy_tp)==false && CheckBuyOrder1(buy1_tp)==false){
int ticket9=OrderSend(Symbol(),OP_BUYSTOP,Lots,buy1,MaxSlippage,0,buy1_tp,"buy",16380,0,clrGreen);
}

double market_sell_tp = bid;
double sell1 = bid - 0.003;
double sell1_tp= bid - 0.004;
if(CheckOpenOrdersSell1(market_sell_tp)==false && CheckSellOrder1(sell1_tp)==false ){
int ticket19=OrderSend(Symbol(),OP_SELLSTOP,Lots,sell1,MaxSlippage,0,sell1_tp,"sell",16380,0,clrGreen);
}
totalOrders = OrdersTotal();
}}

Answer 1

每当你试图将OrderTakeProfit()值与其他double进行比较时 - 请记住舍入和浮点表示。

例如。如果你需要将0.10与你认为是0.10的另一个double进行比较 - 你可能会惊讶于0.10是0.09（9）6或0.10（0）4

这就是为什么有时你可能找不到这样的订单。

double o = Point / 2;    // initialize in OnInit(), declare in global vars
...

bool CheckOrderBuy( double tp ){
   for ( int i = OrdersTotal() - 1; i >= 0; i-- ){
         if ( !OrderSelect( i, SELECT_BY_POS ) )continue;
         if (  fabs( OrderTakeProfit() - tp ) <  o
            &&       OrderType()              == OP_BUY
               ) return true;
   }
   return false;
}