PineScript实现2/3根K线形态圈选及旧标记隐藏技术问询

一、添加多K线形态的圈选标记（使用Box绘制） #

用box.new()函数绘制覆盖整个形态K线范围的矩形框，能清晰标记出构成形态的所有K线。针对你现有2-candle形态的实现逻辑如下：

• 检测到形态时，创建覆盖所有参与K线的矩形框
• 框的左右边界为形态的起始和结束K线索引，上下边界为形态内所有K线的最高/最低价

二、隐藏被多K线形态包含的单K线标记 #

通过维护存储形态涉及K线索引的数组，在绘制单K线标记时判断当前K线是否属于任何多K线形态，若属于则不显示标记：

• 用var数组持久化存储所有被多K线形态包含的K线索引
• 绘制单K线标记时，添加条件：仅当当前K线索引不在形态数组中时才显示

修改后的完整代码 #

//@version=5
indicator("K线形态检测", overlay=true)

// 辅助函数：判断红/绿K线
red(o, c) => o > c
green(o, c) => o < c

// 全局开关（可按需调整）
StrictEngulf = input.bool(true, "严格 engulfing 条件")
StrictInsideCandle = input.bool(true, "严格 Inside Candle 条件")

// 存储形态涉及的K线索引
var int[] pattern_bars = array.new_int()

// ------------------------------
// 2根K线形态检测
// ------------------------------
// Engulfing Pattern
bullish_engulfing(op, cp, hp, lp, o, c, h, l) => red(op, cp) and green(o, c) and (StrictEngulf ? (c > hp and o < lp) : (h > hp and l < lp))
bearish_engulfing(op, cp, hp, lp, o, c, h, l) => green(op, cp) and red(o, c) and (StrictEngulf ? (o > hp and c < lp) : (h > hp and l < lp))

bull_engulf = bullish_engulfing(open[1], close[1], high[1], low[1], open, close, high, low)
bear_engulf = bearish_engulfing(open[1], close[1], high[1], low[1], open, close, high, low)

// Inside Candle (Harami) Pattern
bullish_inside_candle(op, cp, hp, lp, o, c, h, l) => red(op, cp) and green(o, c) and (StrictInsideCandle ? (op > h and cp < l) : (hp > h and lp < l))
bearish_inside_candle(op, cp, hp, lp, o, c, h, l) => green(op, cp) and red(o, c) and (StrictInsideCandle ? (cp > h and op < l) : (hp > h and lp < l))

bull_inside = bullish_inside_candle(open[1], close[1], high[1], low[1], open, close, high, low)
bear_inside = bearish_inside_candle(open[1], close[1], high[1], low[1], open, close, high, low)

// ------------------------------
// 多K线形态圈选（Box绘制）
// ------------------------------
// 绘制Bullish Engulfing框
if bull_engulf
    box.new(bar_index[1], max(high[1], high), bar_index, min(low[1], low), 
            border_color=color.green, border_width=2, 
            fill_color=color.new(color.green, 90), title="Bull Engulf Box")
    // 将涉及的K线加入形态数组
    array.push(pattern_bars, bar_index[1])
    array.push(pattern_bars, bar_index)

// 绘制Bearish Engulfing框
if bear_engulf
    box.new(bar_index[1], max(high[1], high), bar_index, min(low[1], low), 
            border_color=color.red, border_width=2, 
            fill_color=color.new(color.red, 90), title="Bear Engulf Box")
    array.push(pattern_bars, bar_index[1])
    array.push(pattern_bars, bar_index)

// 绘制Bullish Inside Candle框
if bull_inside
    box.new(bar_index[1], max(high[1], high), bar_index, min(low[1], low), 
            border_color=color.green, border_width=2, 
            fill_color=color.new(color.green, 90), title="Bull Inside Box")
    array.push(pattern_bars, bar_index[1])
    array.push(pattern_bars, bar_index)

// 绘制Bearish Inside Candle框
if bear_inside
    box.new(bar_index[1], max(high[1], high), bar_index, min(low[1], low), 
            border_color=color.red, border_width=2, 
            fill_color=color.new(color.red, 90), title="Bear Inside Box")
    array.push(pattern_bars, bar_index[1])
    array.push(pattern_bars, bar_index)

// ------------------------------
// 单K线标记示例（以十字星为例）
// ------------------------------
// 十字星判断条件
is_doji = (abs(open - close) / (high - low)) < 0.1 and (high - low) > 0

// 判断当前K线是否属于任何多K线形态
is_in_pattern = array.includes(pattern_bars, bar_index)

// 仅当十字星不在任何多K线形态中时显示标记
plotshape(is_doji and not is_in_pattern, title="Doji", text="Doji", 
          location=location.belowbar, style=shape.labelup, 
          color=color.blue, textcolor=color.white, size=size.small)

// ------------------------------
// 原有形态文本标记（可选保留）
// ------------------------------
plotshape(bull_engulf, title='Bull-Engulf', text='Bull-Engulf', location=location.belowbar, style=shape.triangleup, color=color.green, textcolor=color.green)
plotshape(bear_engulf, title='Bear-Engulf', text='Bear-Engulf', location=location.abovebar, style=shape.triangledown, color=color.red, textcolor=color.red)
plotshape(bull_inside, title='Bull-IC', text='Bull-IC', location=location.belowbar, style=shape.triangleup, color=color.green, textcolor=color.green)
plotshape(bear_inside, title='Bear-IC', text='Bear-IC', location=location.abovebar, style=shape.triangledown, color=color.red, textcolor=color.red)

扩展到3根K线形态（如晨星/夜星） #

以晨星形态为例，添加以下代码即可实现圈选和标记隐藏：

// 晨星形态检测
morning_star = red(open[2], close[2]) and is_doji[1] and green(open, close) and close > open[2]

if morning_star
    // 绘制覆盖3根K线的框
    box.new(bar_index[2], max(max(high[2], high[1]), high), bar_index, min(min(low[2], low[1]), low), 
            border_color=color.green, border_width=2, 
            fill_color=color.new(color.green, 90), title="Morning Star Box")
    // 将3根K线加入形态数组
    array.push(pattern_bars, bar_index[2])
    array.push(pattern_bars, bar_index[1])
    array.push(pattern_bars, bar_index)

内容的提问来源于stack exchange，提问作者Pradip