Tradingview Pine script save close price at time of strategy entry

问题

Hey I'm trying to save the close price at the time of strategy.entry to a variable so I can use it later for an exit.

if condition
    strategy.entry("long", true)
    buyprice=close
(strategy.exit("exit","long", when = close>buyprice*1.1) 

I get the error: Undeclared identifier 'buyprice'. From what I understand this means that the variable is not valid outside of the if statement. Is there a way to change this? Thanks in advance for your help

回答1:

This is the only way that I could get this to work.

Basically, you set the previous price when long condition is met and then retrieve that value from the global variables in the next phase.

//@version=2
...
buyprice=buyprice[1]


golong=...

if golong
    buyprice := close

goshort=... or close<=buyprice*0.95

strategy.entry("Long", long=true, when=golong)
strategy.close("Long", when=goshort)

Hope this helps!

来源：https://stackoverflow.com/questions/48958139/tradingview-pine-script-save-close-price-at-time-of-strategy-entry