如何将该4色MACD指标代码转换为TradingView Pine Script 3版本？

以下是转换后的Pine Script 3版本代码，同时做了小幅度的效率优化：

//@version=3
indicator(shorttitle = "MACD 4C", title = "4 colour MACD")
fastMA = input(title="Fast moving average", defval = 12, minval = 7)
slowMA = input(title="Slow moving average", defval = 26, minval = 7)

currMacd = macd(close, fastMA, slowMA, 9)[0]
prevMacd = currMacd[1]

plotColor = currMacd > 0 
    ? currMacd > prevMacd ? lime : green 
    : currMacd < prevMacd ? maroon : red

plot(currMacd, style = histogram, color = plotColor, linewidth = 3)
plot(0, title = "Zero line", linewidth = 1, color = gray)

关键修改说明 #

• 替换study()为indicator()：Pine Script 3及以后版本统一使用indicator()声明指标，替代旧版的study()
• 简化input参数：v3中input会自动根据默认值识别数据类型，无需手动指定type = integer
• 优化MACD值获取：原代码分别调用两次macd()获取当前和前一根K线的值，新版直接通过currMacd[1]获取前值，减少重复计算，提升运行效率
• 保留原4色逻辑：完全沿用原代码的颜色判断规则，保证指标的视觉表现和原版本一致

内容的提问来源于stack exchange，提问作者byGEREN