TA.CDL3BLACKCROWS() - 三只乌鸦

TA.CDL3BLACKCROWS(opens, highs, lows, closes)

1. 连续3根阴线：Close[i] < Open[i]
2. 递减收盘：Close[-1] < Close[-2] < Close[-3]
3. 开盘在实体内：Open[-2] < Close[-3] 且 Open[-2] > Close[-3]的某个点
4. 实体较长：每根阴线实体 > 平均实体

def three_black_crows_detection():
    records = exchange.GetRecords()
    if len(records) < 50:
        return
    
    opens = [r['Open'] for r in records]
    highs = [r['High'] for r in records]
    lows = [r['Low'] for r in records]
    closes = [r['Close'] for r in records]
    
    pattern = TA.CDL3BLACKCROWS(opens, highs, lows, closes)
    
    if pattern[-1] == -100:
        Log("⚠️ 出现三只乌鸦，强烈看跌信号")
        
        # 检查位置
        sma50 = TA.SMA(closes, 50)
        if closes[-3] > sma50[-3]:  # 高位出现
            Log("高位三只乌鸦 → 准备做空或平仓")
            
            # 立即行动
            exchange.Sell(-1, 1)  # 平多仓
            Log("平掉所有多仓")

def three_crows_reversal():
    records = exchange.GetRecords()
    opens = [r['Open'] for r in records]
    highs = [r['High'] for r in records]
    lows = [r['Low'] for r in records]
    closes = [r['Close'] for r in records]
    volumes = [r['Volume'] for r in records]
    
    pattern = TA.CDL3BLACKCROWS(opens, highs, lows, closes)
    rsi = TA.RSI(closes, 14)
    
    if pattern[-1] == -100:
        # 确认在高位
        if rsi[-4] > 65:  # 形态前RSI在高位
            Log("高位三只乌鸦确认")
            
            # 检查成交量
            avg_vol = sum(volumes[-20:-3]) / 17
            recent_vol = sum(volumes[-3:]) / 3
            
            if recent_vol > avg_vol * 1.2:
                Log("放量三只乌鸦，信号极强")
                
                # 做空策略
                atr = TA.ATR(records, 14)
                entry_price = closes[-1]
                stop_loss = highs[-3] + atr[-1]  # 第一根乌鸦上方
                
                exchange.Sell(-1, 1)
                Log(f"做空入场: {entry_price:.2f}")
                Log(f"止损位: {stop_loss:.2f}")

def crows_macd_divergence():
    records = exchange.GetRecords()
    opens = [r['Open'] for r in records]
    highs = [r['High'] for r in records]
    lows = [r['Low'] for r in records]
    closes = [r['Close'] for r in records]
    
    pattern = TA.CDL3BLACKCROWS(opens, highs, lows, closes)
    macd_result = TA.MACD(closes, 12, 26, 9)
    macd_dif = macd_result[0]
    
    if pattern[-1] == -100:
        # 检查MACD顶背离
        # 价格创新高，MACD未创新高
        price_higher = closes[-4] > closes[-10]
        macd_lower = macd_dif[-4] < macd_dif[-10]
        
        if price_higher and macd_lower:
            Log("三只乌鸦 + MACD顶背离 → 极强看跌")
            
            # 激进做空
            exchange.Sell(-1, 1.5)  # 1.5倍仓位
            
            # 分级止损
            atr = TA.ATR(records, 14)
            stop_loss_1 = closes[-1] + 1.5 * atr[-1]  # 紧止损
            stop_loss_2 = highs[-3] + 2 * atr[-1]  # 松止损
            
            Log(f"紧止损: {stop_loss_1:.2f}")
            Log(f"松止损: {stop_loss_2:.2f}")

def crows_risk_management():
    records = exchange.GetRecords()
    opens = [r['Open'] for r in records]
    highs = [r['High'] for r in records]
    lows = [r['Low'] for r in records]
    closes = [r['Close'] for r in records]
    
    pattern = TA.CDL3BLACKCROWS(opens, highs, lows, closes)
    
    if pattern[-1] == -100:
        atr = TA.ATR(records, 14)
        entry = closes[-1]
        
        # 止损：第一根乌鸦最高点上方
        stop_loss = max(highs[-3], highs[-2], highs[-1]) + atr[-1]
        
        # 止盈：风险回报比1:3
        risk = stop_loss - entry
        target_1 = entry - risk * 1.5  # 目标1
        target_2 = entry - risk * 3    # 目标2
        
        Log(f"入场: {entry:.2f}")
        Log(f"止损: {stop_loss:.2f} (风险: {risk:.2f})")
        Log(f"目标1: {target_1:.2f}")
        Log(f"目标2: {target_2:.2f}")

# 失败信号
1. 第四根K线收阳线
2. 快速反弹超过第一根乌鸦开盘价
3. 成交量萎缩
4. 出现在下降趋势底部