尝试绘制日内保证金率的背景颜色

Question

尝试绘制选定的背景颜色，以便在我进行交易时提醒自己盘中保证金率何时开始和结束。我从另一个指标复制了它并对其进行了修改，尽管我根本没有做太多更改。不断收到 "undeclared identifier" 错误。不明白我做错了什么。错误：

Error: Undeclared identifier `input.string`;
Error: Undeclared identifier `input.string`;
Error: Undeclared identifier `begin0`;
Error: Undeclared identifier `end0`;
Error: Undeclared identifier `sess0`;
Error: Undeclared identifier `bgPlot0`

代码：

study(title="Highlight/Display/Show intraday trading session/period", shorttitle="intraday", overlay=true)
use0 = input(true, title="Highlight intraday trading session")
begin0 = input(title="Begin", type=input.string, defval="0800")
end0 = input(title="End", type=input.string, defval="1500")
sess0 = begin0 + "-" + end0
bgPlot0 = time(period, sess0)
bgcolor(use0 and bgPlot0 > 0 ? black : na, transp=98)

Answer 1

您混合了 v3 和 v4 语法：

//@version=4
study(title="Highlight/Display/Show intraday trading session/period", shorttitle="intraday", overlay=true)
use0 = input(true, title="Highlight intraday trading session")
begin0 = input(title="Begin", type=input.string, defval="0800")
end0 = input(title="End", type=input.string, defval="1500")
sess0 = begin0 + "-" + end0
bgPlot0 = time(timeframe.period, sess0)
bgcolor(use0 and bgPlot0 > 0 ? color.black : na, transp=98)

这些是 v4 文档：

https://www.tradingview.com/pine-script-reference/v4/

https://www.tradingview.com/pine-script-docs/en/v4/Introduction.html

尝试绘制日内保证金率的背景颜色

Trying to plot background color for intraday margin rates

pine-script