黄金K线流EA - MQL4源码（纯K线形态黄金交易策略）

Summary: 黄金K线流EA是一款专为黄金设计的MQL4智能交易系统。识别高概率K线形态（内含线、Pin Bar、吞没形态），结合趋势对齐和ATR过滤，适合H1周期稳定运行。




黄金K线流EA专为黄金（XAUUSD）构建，使用纯K线价格行为。不同于复杂指标，它专注于可靠的反转和延续形态：内含线、Pin Bar和吞没形态。EA将形态识别与简单的EMA趋势过滤器和ATR波动率过滤器相结合以减少假信号。每笔交易包含基于形态高点/低点的固定止损和2.5倍风险的止盈。追踪止损帮助捕捉延伸行情。

推荐加载周期： H1
策略核心逻辑：
1. 形态检测：识别已收盘K线的内含线（区间在前一根之内）、Pin Bar（长影线）或吞没形态。
2. 趋势过滤：EMA(50)提供方向（高于EMA只做多，低于EMA只做空）。
3. 波动率过滤：ATR(14)必须低于1.8倍平均值，避免极端波动。
4. 入场：在下一根K线开盘时，于形态突破价位放置挂单，止损设在形态极值之外。

```mql4
//+------------------------------------------------------------------+
//| GoldCandleFlowEA.mq4 |
//+------------------------------------------------------------------+
#property copyright ""
#property link ""
#property version "1.00"
#property strict

//--- 输入参数及注释
input double LotSize = 0.01; // 固定交易手数（0.01手）
input int TrendMAPeriod = 50; // EMA趋势过滤周期
input int ATRPeriod = 14; // ATR波动率周期
input double MaxATRMultiplier = 1.8; // 最大ATR倍数（过滤高波动行情）
input double RiskRewardRatio = 2.5; // 风险回报比（止盈 = 止损 × 此值）
input double TrailingStart = 1.2; // 追踪止损启动（盈利达到止损的此倍数）
input double TrailingStep = 0.5; // 追踪步长（止损的倍数）
input int MagicNumber = 202418; // EA魔术号
input int MaxSpread = 35; // 最大允许点差（单位：点）
input double DailyLossLimit = 5.0; // 每日亏损限额（账户余额百分比）
input bool UseFridayClose = true; // 周五20:00 GMT前平仓

//--- 全局变量
double dailyStartBalance = 0;
datetime lastBarTime = 0;
bool fridayCloseExecuted = false;
double avgATR = 0;
double lastPatternSL = 0;
double lastPatternRisk = 0;

//+------------------------------------------------------------------+
//| EA初始化函数 |
//+------------------------------------------------------------------+
int OnInit()
{
dailyStartBalance = AccountBalance();
lastBarTime = 0;
fridayCloseExecuted = false;
avgATR = iATR(Symbol(), PERIOD_H1, ATRPeriod, 1);
if(avgATR <= 0) avgATR = 200 * Point;
return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| EA退出函数 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
Comment("");
}

//+------------------------------------------------------------------+
//| 检测内含线形态（区间在前一根K线之内） |
//+------------------------------------------------------------------+
bool IsInsideBar(int shift, double &patternHigh, double &patternLow)
{
double high = iHigh(Symbol(), PERIOD_H1, shift);
double low = iLow(Symbol(), PERIOD_H1, shift);
double prevHigh = iHigh(Symbol(), PERIOD_H1, shift + 1);
double prevLow = iLow(Symbol(), PERIOD_H1, shift + 1);

patternHigh = high;
patternLow = low;

return (high <= prevHigh && low >= prevLow);
}

//+------------------------------------------------------------------+
//| 检测Pin Bar形态（长影线，小实体） |
//+------------------------------------------------------------------+
bool IsPinBar(int shift, double &patternHigh, double &patternLow, int &direction)
{
double open = iOpen(Symbol(), PERIOD_H1, shift);
double close = iClose(Symbol(), PERIOD_H1, shift);
double high = iHigh(Symbol(), PERIOD_H1, shift);
double low = iLow(Symbol(), PERIOD_H1, shift);

double body = MathAbs(close - open);
double upperWick = high - MathMax(open, close);
double lowerWick = MathMin(open, close) - low;
double totalRange = high - low;

if(totalRange <= 0) return false;

// 看涨Pin Bar（锤子线）：下影线 > 2倍实体，上影线很小
if(lowerWick > 2 * body && upperWick < body)
{
direction = 1; // 看涨
patternHigh = high;
patternLow = low;
return true;
}
// 看跌Pin Bar（射击之星）：上影线 > 2倍实体，下影线很小
else if(upperWick > 2 * body && lowerWick < body)
{
direction = -1; // 看跌
patternHigh = high;
patternLow = low;
return true;
}

return false;
}

//+------------------------------------------------------------------+
//| 检测吞没形态 |
//+------------------------------------------------------------------+
bool IsEngulfing(int shift, double &patternHigh, double &patternLow, int &direction)
{
double open = iOpen(Symbol(), PERIOD_H1, shift);
double close = iClose(Symbol(), PERIOD_H1, shift);
double prevOpen = iOpen(Symbol(), PERIOD_H1, shift + 1);
double prevClose = iClose(Symbol(), PERIOD_H1, shift + 1);
double high = iHigh(Symbol(), PERIOD_H1, shift);
double low = iLow(Symbol(), PERIOD_H1, shift);
double prevHigh = iHigh(Symbol(), PERIOD_H1, shift + 1);
double prevLow = iLow(Symbol(), PERIOD_H1, shift + 1);

// 看涨吞没：前一根阴线，当前阳线，完全覆盖前一根
if(prevClose < prevOpen && close > open && close > prevOpen && open < prevClose)
{
direction = 1;
patternHigh = high;
patternLow = low;
return true;
}
// 看跌吞没：前一根阳线，当前阴线，完全覆盖前一根
else if(prevClose > prevOpen && close < open && close < prevOpen && open > prevClose)
{
direction = -1;
patternHigh = high;
patternLow = low;
return true;
}

return false;
}

//+------------------------------------------------------------------+
//| 管理追踪止损 |
//+------------------------------------------------------------------+
void ManageTrailingStop(double riskAmount)
{
for(int i = OrdersTotal()-1; i >= 0; i--)
{
if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES))
{
if(OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber)
{
double activateLevel = riskAmount * TrailingStart;
double step = riskAmount * TrailingStep;

double newSL = 0;
if(OrderType() == OP_BUY)
{
double profit = Bid - OrderOpenPrice();
if(profit >= activateLevel)
{
newSL = Bid - step;
if(newSL > OrderStopLoss())
OrderModify(OrderTicket(), OrderOpenPrice(), newSL, OrderTakeProfit(), 0, clrNONE);
}
}
else if(OrderType() == OP_SELL)
{
double profit = OrderOpenPrice() - Ask;
if(profit >= activateLevel)
{
newSL = Ask + step;
if(newSL < OrderStopLoss() || OrderStopLoss() == 0)
OrderModify(OrderTicket(), OrderOpenPrice(), newSL, OrderTakeProfit(), 0, clrNONE);
}
}
break;
}
}
}
}

//+------------------------------------------------------------------+
//| EA主循环函数（每Tick执行） |
//+------------------------------------------------------------------+
void OnTick()
{
// 每日净值保护
double currentEquity = AccountEquity();
double lossPercent = (dailyStartBalance - currentEquity) / dailyStartBalance * 100;
if(lossPercent >= DailyLossLimit)
{
Comment("已达每日亏损上限，停止开新仓");
return;
}

// 周五收盘前平仓（规避周末跳空）
if(UseFridayClose && !fridayCloseExecuted)
{
datetime currentTime = TimeCurrent();
if(TimeDayOfWeek(currentTime) == 5 && TimeHour(currentTime) >= 20)
{
CloseAllOrders();
fridayCloseExecuted = true;
return;
}
if(TimeDayOfWeek(currentTime) != 5)
fridayCloseExecuted = false;
}

// 点差过滤
if(MarketInfo(Symbol(), MODE_SPREAD) > MaxSpread)
{
Comment("当前点差过大：", MarketInfo(Symbol(), MODE_SPREAD));
return;
}

// 仅在新K线开始时检测入场（H1）
if(Time[0] == lastBarTime)
return;
lastBarTime = Time[0];

// 管理现有持仓
int posCount = CountPositions();
if(posCount > 0)
{
if(lastPatternRisk > 0)
ManageTrailingStop(lastPatternRisk);
return;
}

// 波动率过滤
double atr = iATR(Symbol(), PERIOD_H1, ATRPeriod, 1);
if(atr > 0) avgATR = (avgATR * 0.95) + (atr * 0.05);
if(atr > avgATR * MaxATRMultiplier)
{
Comment("当前波动率过高，ATR: ", atr);
return;
}

// 趋势过滤
double ema = iMA(Symbol(), PERIOD_H1, TrendMAPeriod, 0, MODE_EMA, PRICE_CLOSE, 1);
double close1 = iClose(Symbol(), PERIOD_H1, 1);

// 在前一根K线（shift=1）上检测形态
double patternHigh = 0, patternLow = 0;
int patternDir = 0;
bool patternFound = false;

if(IsInsideBar(1, patternHigh, patternLow))
{
patternFound = true;
// 内含线的方向由突破方向决定（跟随EMA趋势）
patternDir = (close1 > ema) ? 1 : -1;
}
else if(IsPinBar(1, patternHigh, patternLow, patternDir))
{
patternFound = true;
}
else if(IsEngulfing(1, patternHigh, patternLow, patternDir))
{
patternFound = true;
}

if(!patternFound)
{
Comment("未检测到有效K线形态");
return;
}

// 检查趋势对齐
bool trendOk = (patternDir == 1 && close1 > ema) || (patternDir == -1 && close1 < ema);
if(!trendOk)
{
Comment("形态方向与趋势不符");
return;
}

// 计算入场、止损、止盈
double entry = 0, sl = 0, tp = 0;
double riskAmount = 0;

if(patternDir == 1) // 看涨 - 在形态高点上方买入
{
entry = patternHigh + 10 * Point;
sl = patternLow - 10 * Point;
tp = entry + (entry - sl) * RiskRewardRatio;
riskAmount = entry - sl;
}
else if(patternDir == -1) // 看跌 - 在形态低点下方卖出
{
entry = patternLow - 10 * Point;
sl = patternHigh + 10 * Point;
tp = entry - (sl - entry) * RiskRewardRatio;
riskAmount = sl - entry;
}

if(entry > 0 && sl > 0 && tp > 0)
{
int ticket = OrderSend(Symbol(), (patternDir==1?OP_BUY:OP_SELL), LotSize, entry, 5, sl, tp, "Gold CandleFlow", MagicNumber, 0, clrNONE);
if(ticket > 0)
{
lastPatternRisk = riskAmount;
Print("基于K线形态开仓成功");
}
else
Print("开仓失败，错误码：", GetLastError());
}
}

//+------------------------------------------------------------------+
//| 统计当前魔术号的持仓数量 |
//+------------------------------------------------------------------+
int CountPositions()
{
int count = 0;
for(int i = OrdersTotal()-1; i >= 0; i--)
{
if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES))
{
if(OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber)
count++;
}
}
return count;
}

//+------------------------------------------------------------------+
//| 平仓当前品种下所有属于该EA的订单 |
//+------------------------------------------------------------------+
void CloseAllOrders()
{
for(int i = OrdersTotal()-1; i >= 0; i--)
{
if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES))
{
if(OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber)
{
if(OrderType() == OP_BUY)
OrderClose(OrderTicket(), OrderLots(), Bid, 5, clrNONE);
else if(OrderType() == OP_SELL)
OrderClose(OrderTicket(), OrderLots(), Ask, 5, clrNONE);
}
}
}
}
//+------------------------------------------------------------------+
```
参考来源： 原创MQL4代码，仅供学习参考。
免责声明： 黄金交易因高波动性和市场跳空具有重大风险。本EA按“原样”提供，不保证盈利。实盘部署前请始终在模拟账户测试至少一个月。历史表现不代表未来结果。
```