即使我的代码看起来正确，“metatrader 5 tester”上的指标值也没有更新

Question

所以我遇到的问题是，当我运行内置的 mql5 测试器时，我的指标值不会动态变化，它们保持恒定值，即使我编写了代码，以便在每个价格变动时不断读取指标值。这导致机器人没有进行一笔交易，我已经尝试了一切来解决这个问题，甚至阅读了 mql5 的文档，据我所知，我没有犯任何错误。欢迎任何反馈或解决方案。

//+------------------------------------------------------------------+
//|                                                  SwingTradeBot.mq5 |
//+------------------------------------------------------------------+
#include <Trade\Trade.mqh>
CTrade trade;  // Trade object for order operations

input int    SMA_Fast_Period = 50;     // Fast SMA period
input int    SMA_Slow_Period = 200;    // Slow SMA period
input int    RSI_Period = 14;          // RSI period
input double Risk_Percent = 2.0;       // Risk percentage of account balance
input double StopLossFactor = 2.0;     // Factor for setting stop loss
input double TakeProfitFactor = 3.0;   // Factor for setting take profit

// Global variables for indicator values
double FastMA_Current, SlowMA_Current, RSI_Current;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit() {
    Print("Swing Trading Bot Initialized");
    return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Calculate the lot size based on risk management rules            |
//+------------------------------------------------------------------+
double CalculateLotSize() {
    double riskAmount = AccountInfoDouble(ACCOUNT_BALANCE) * Risk_Percent / 100;
    double atr = iATR(_Symbol, PERIOD_D1, 14);
    double stopLossPips = atr * StopLossFactor / _Point;
    double pipValue = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE) / SymbolInfoDouble(_Symbol, SYMBOL_TRADE_CONTRACT_SIZE);
    double calculatedLotSize = riskAmount / (stopLossPips * pipValue);
    double minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
    double maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
    double lotStep = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
    calculatedLotSize = MathMax(minLot, MathMin(calculatedLotSize, maxLot));
    calculatedLotSize = MathRound(calculatedLotSize / lotStep) * lotStep;
    Print("Calculated Lot Size: ", calculatedLotSize); // Debugging print
    return calculatedLotSize;
}

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick() {
    UpdateIndicators();
    double lot = CalculateLotSize();
    if (ShouldOpenBuyOrder()) {
        Print("Attempting to place buy order."); // Debugging print
        PlaceBuyOrder(lot);
    } else if (ShouldOpenSellOrder()) {
        Print("Attempting to place sell order."); // Debugging print
        PlaceSellOrder(lot);
    }
}

//+------------------------------------------------------------------+
//| Update indicator values                                          |
//+------------------------------------------------------------------+
void UpdateIndicators() {
    FastMA_Current = iMA(_Symbol, PERIOD_D1, SMA_Fast_Period, 0, MODE_SMA, PRICE_CLOSE);
    SlowMA_Current = iMA(_Symbol, PERIOD_D1, SMA_Slow_Period, 0, MODE_SMA, PRICE_CLOSE);
    RSI_Current = iRSI(_Symbol, PERIOD_H4, RSI_Period, PRICE_CLOSE);

    datetime currentBarTime = iTime(_Symbol, PERIOD_D1, 0);
    Print("Current Bar Time: ", TimeToString(currentBarTime, TIME_DATE|TIME_MINUTES),
          ", FastMA: ", FastMA_Current,
          ", SlowMA: ", SlowMA_Current,
          ", RSI: ", RSI_Current);
}

//+------------------------------------------------------------------+
//| Check if a buy order should be opened                            |
//+------------------------------------------------------------------+
bool ShouldOpenBuyOrder() {
    Print("Checking Buy Condition - FastMA: ", FastMA_Current, ", SlowMA: ", SlowMA_Current, ", RSI: ", RSI_Current); // Debugging print
    return (FastMA_Current > SlowMA_Current && RSI_Current < 50);
}

//+------------------------------------------------------------------+
//| Check if a sell order should be opened                           |
//+------------------------------------------------------------------+
bool ShouldOpenSellOrder() {
    Print("Checking Sell Condition - FastMA: ", FastMA_Current, ", SlowMA: ", SlowMA_Current, ", RSI: ", RSI_Current); // Debugging print
    return (FastMA_Current < SlowMA_Current && RSI_Current > 50);
}

//+------------------------------------------------------------------+
//| Place a buy order                                                |
//+------------------------------------------------------------------+
void PlaceBuyOrder(double lot) {
    double currentPrice = SymbolInfoDouble(_Symbol, SYMBOL_BID);
    double stopLoss = currentPrice - StopLossFactor * SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
    double takeProfit = currentPrice + TakeProfitFactor * SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
    MqlTradeRequest request;
    MqlTradeResult result;
    request.action = TRADE_ACTION_DEAL;
    request.symbol = _Symbol;
    request.volume = lot;
    request.type = ORDER_TYPE_BUY;
    request.price = currentPrice;
    request.sl = stopLoss;
    request.tp = takeProfit;
    request.deviation = 3;
    request.type_filling = ORDER_FILLING_RETURN;
    request.comment = "Buy Order";
    if (!trade.OrderSend(request, result)) {
        Print("Error opening buy order: ", result.comment, ", Error Code: ", GetLastError()); // Debugging print
    } else {
        Print("Buy order placed successfully."); // Debugging print
    }
}

//+------------------------------------------------------------------+
//| Place a sell order                                               |
//+------------------------------------------------------------------+
void PlaceSellOrder(double lot) {
    double currentPrice = SymbolInfoDouble(_Symbol, SYMBOL_ASK);
    double stopLoss = currentPrice + StopLossFactor * SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
    double takeProfit = currentPrice - TakeProfitFactor * SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
    MqlTradeRequest request;
    MqlTradeResult result;
    request.action = TRADE_ACTION_DEAL;
    request.symbol = _Symbol;
    request.volume = lot;
    request.type = ORDER_TYPE_SELL;
    request.price = currentPrice;
    request.sl = stopLoss;
    request.tp = takeProfit;
    request.deviation = 3;
    request.type_filling = ORDER_FILLING_RETURN;
    request.comment = "Sell Order";
    if (!trade.OrderSend(request, result)) {
        Print("Error opening sell order: ", result.comment, ", Error Code: ", GetLastError()); // Debugging print
    } else {
        Print("Sell order placed successfully."); // Debugging print
    }
}

Answer 1

在 MQL5 中使用指标与在 MQL4 中使用它们有很大不同。

在 MQL4 指标中，只需调用并返回它们的值。

在 MQL5 中，定义了指标（返回指标句柄），并且必须定义一个缓冲区（以数组的形式）并准备好存储它们的值。

调用定义的指标（通过使用其句柄）时，必须将返回值复制到数组中。

您还必须设置：

#property indicator_buffers 1 // or 2,3...

第一次使用时，这似乎令人生畏，但是当在多个时间范围（如 iMA 5、30、D1）上应用类似的指标时，它很容易工作。