Update README.md

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//@version=5 indicator("Smoothed VWAP Range", overlay=true)

// 输入参数 length = input.int(200, title="Length") bandMultiplier = input.float(2.0, title="Band Multiplier") showBands = input.bool(true, title="Show Bands") showClose = input.bool(true, title="Show Close Line") showHLArea = input.bool(true, title="Show High-Low Area")

// 计算成交量和VWAP vol = volume volSma = ta.sma(vol, length)

srcVolSmaClose = ta.sma(close vol, length) srcVolSmaHigh = ta.sma(high vol, length) srcVolSmaLow = ta.sma(low * vol, length)

vwapHighClose = srcVolSmaClose / volSma vwapHighHigh = srcVolSmaHigh / volSma vwapHighLow = srcVolSmaLow / volSma

// 控制显示高低区域 (云图) hline = showHLArea ? vwapHighHigh : na lline = showHLArea ? vwapHighLow : na

plot(hline, color=color.new(color.blue, 0), title="VWAP High", linewidth=1) plot(lline, color=color.new(color.blue, 0), title="VWAP Low", linewidth=1)

fill(hline, lline, color=color.new(color.blue, 90), title="HL Area")

// 控制显示收盘线 plot(showClose ? vwapHighClose : na, color=color.white, title="VWAP Close Line", linewidth=2)

// 计算并显示VWAP标准差带 if (showBands) srcSrcVolSmaClose = ta.sma(vol math.pow(close, 2), length) srcSrcVolSmaHigh = ta.sma(vol math.pow(high, 2), length) srcSrcVolSmaLow = ta.sma(vol * math.pow(low, 2), length)

stDevHighClose = math.sqrt(srcSrcVolSmaClose / volSma - math.pow(vwapHighClose, 2))
stDevHighHigh = math.sqrt(srcSrcVolSmaHigh / volSma - math.pow(vwapHighHigh, 2))
stDevHighLow = math.sqrt(srcSrcVolSmaLow / volSma - math.pow(vwapHighLow, 2))

upperBandClose = vwapHighClose + stDevHighClose * bandMultiplier
lowerBandClose = vwapHighClose - stDevHighClose * bandMultiplier

upperBandHigh = vwapHighHigh + stDevHighHigh * bandMultiplier
lowerBandHigh = vwapHighHigh - stDevHighHigh * bandMultiplier

upperBandLow = vwapHighLow + stDevHighLow * bandMultiplier
lowerBandLow = vwapHighLow - stDevHighLow * bandMultiplier

plot(upperBandClose, color=color.new(color.red, 0), title="Upper Band (Close)", linewidth=1)
plot(lowerBandClose, color=color.new(color.red, 0), title="Lower Band (Close)", linewidth=1)

plot(upperBandHigh, color=color.new(color.green, 0), title="Upper Band (High)", linewidth=1)
plot(lowerBandHigh, color=color.new(color.green, 0), title="Lower Band (High)", linewidth=1)

plot(upperBandLow, color=color.new(color.yellow, 0), title="Upper Band (Low)", linewidth=1)
plot(lowerBandLow, color=color.new(color.yellow, 0), title="Lower Band (Low)", linewidth=1)