Tradeview: pinescript error: expecting 'end of line without line continuation'

Question

在 tradeview 中编译以下代码时出现以下错误。基本上，我正在尝试使用 EMA/SMA 字符串来计算 MACD。

第 20 行：不匹配的输入 'ema' 期望 'end of the line without line continuation'

有人可以让我知道我在这里缺少什么吗？有没有更好的编码方式？

此外，我们可以在 if-else 语句中有多行，还是应该只有一行？

study("MACD BB - PRD")

//MACD Inputs
//---------------------------------------------------------------
fastLength  =   input(defval=12,     title="MACD.FastPeriod",   minval=1, maxval=50,  step=1) 
slowLength  =   input(defval=26,     title="MACD.SlowPeriod",   minval=1, maxval=200, step=1)
signalLength=   input(defval=9,      title="MACD.SignalLength", minval=1, maxval=100, step=1)
macdMode    =   input(defval="EMA",  title="MACD.AverageMode",  options=["EMA","SMA"])

//Bollinger Bands Inputs
//---------------------------------------------------------------
bbPeriod    =   input(defval=9,      title="MACD.SignalLength",          minval=1, maxval=100, step=1)
bbMultipler =   input(defval=1,      title="MACD.SignalLength",          minval=1, maxval=10,  step=0.1)
bbMode      =   input(defval="EMA",  title="BollingerBands.AverageMode", options=["EMA","SMA"])

//---------------------------------------------------------------
// MACD calculation
macd = if (macdMode == "EMA")
ema(close, fastLength) - ema(close, slowLength)  // line20
else
sma(close, fastLength) - sma(close, slowLength)

Answer 1

您的问题是缩进。您必须将 if 语句主体内的代码移动 4 个空格或 1 个制表符。

// MACD calculation
macd = if (macdMode == "EMA")
    ema(close, fastLength) - ema(close, slowLength)  // line20
else
    sma(close, fastLength) - sma(close, slowLength)

can we have multiple lines inside if-else statement or should I be having just oneliners?

是的。

TradingView 的 Pine Script Tutorial 可能会对您有所帮助。

Tradeview: pinescript error: expecting 'end of line without line continuation'

Tradeview: pinescript error: expecting 'end of line without line continuation'

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