以下代码可帮助客栈找到用户提到的初始范围的高值和低值。

study(title="Initial Range",shorttitle="IR",overlay=true)

ir = input(true,title="Show Initial Range") 
res = input('60',type=resolution,title="Duration of Initial Range")
SessionTiming = input("0915-1530",type=session)
sessToUse= SessionTiming
bartimeSess = time('D',sessToUse)
fr2to17 = time(period,sessToUse)

is_newbar(res) => change(time(res,sessToUse)) != 0

adopt(r,s) => security(tickerid,r,s)
high_range = valuewhen(is_newbar('D'),high,0)

low_range = valuewhen(is_newbar('D'),low,0)
plot( fr2to17>0 and isintraday and ir ? adopt(res,high_range): na,title="High",style=circles,color=#FF7F00,transp=0)

plot( fr2to17>0 and isintraday and ir ? adopt(res,low_range): na,title="Low",transp=0)