Pine Script报错：输入'indiseBox'存在语法错误，求修复方案

错误原因及修复点 #

• 触发语法错误的核心原因：box.new()函数的参数里，right=bar_index后面没加逗号，导致代码解析中断，直接抛出Syntax error at input 'indiseBox'。
• 额外问题修复：
  1. 初始状态下indiseBox是na，直接调用box.set_right会触发运行时错误，必须加非空判断。
  2. 原代码的plotcandle用了原始K线的开高低收，没用到你获取的Heikin Ashi数据，等于白计算HA数据。

修复后的完整代码 #

//@version=5
indicator("heikinashi", overlay = true)

bullish_color = input(title = "Bullish Bar color", defval = color.rgb(0, 191, 255, 0))
bearish_color = input(title = "Bearish Bar color", defval = color.rgb(242, 227, 12, 0))

// 获取Heikin Ashi数据
heikinashi_open = request.security(ticker.heikinashi(syminfo.tickerid), timeframe.period, open)
heikinashi_high = request.security(ticker.heikinashi(syminfo.tickerid), timeframe.period, high)
heikinashi_low = request.security(ticker.heikinashi(syminfo.tickerid), timeframe.period, low)
heikinashi_close = request.security(ticker.heikinashi(syminfo.tickerid), timeframe.period, close)

isInside = heikinashi_high < heikinashi_high[1] and heikinashi_low > heikinashi_low[1]

var box indiseBox = na

if isInside 
     // 修复：right参数后添加逗号，解决语法解析问题
     indiseBox := box.new(left = bar_index-1, top=heikinashi_high[1], right=bar_index,
      bottom =  heikinashi_low[1], bgcolor = color.new(color.silver,85) , border_color = color.new(color.silver,85))
else
     // 修复：增加非空判断，避免na调用函数报错
     if not na(indiseBox)
          box.set_right(indiseBox, bar_index)

// 修复：使用Heikin Ashi数据绘制蜡烛，正确展示HA形态
plotcandle(heikinashi_open, heikinashi_high, heikinashi_low, heikinashi_close, title = "heikinashi", color = heikinashi_open < heikinashi_close ? bullish_color : bearish_color)

关键修改说明 #

1. 在box.new()的right=bar_index后补加逗号，解决语法解析失败的问题。
2. else分支中加入if not na(indiseBox)判断，确保只有当盒子已创建时才执行扩展操作，避免运行时报错。
3. 将plotcandle的参数替换为Heikin Ashi的开高低收数据，正确绘制HA蜡烛形态。

内容的提问来源于stack exchange，提问作者Titikarn Waitayasuwan