止损触发后如何实现反向开仓？（附Pine Script尝试代码）

我建立了多头头寸，但价格下跌触发止损时，希望脚本不仅平仓多头，还能自动开仓空头。自行编写代码未成功，以下是我的几次尝试：

初始代码片段1 #

strategy.exit("Exit short", from_entry="short", stop=low * stoplossforSell)

接着编写：

if strategy.position_entry_name=="Exit short"
     strategy.entry("long from short",strategy.long)

编辑版本 #

if(bhigh[1]>upper[1] and bhigh[1]>bhigh and macd<signal2 )
strategy.close("long")
strategy.entry("short",strategy.short)
strategy.exit("Exit short", from_entry="short", stop=low * stoplossforSell)
strategy.entry("Short", strategy.short, stop=low * stoplossforSell)


if(blow[1]<lower[1] and blow[1]<blow and open[1]<close[1] and macd>signal2)
strategy.close("short")
strategy.entry("long",strategy.long)
strategy.exit("Exit long", from_entry="long", stop=low * stoplossforBuy)
strategy.entry("long", strategy.long, stop=low * stoplossforSell)

编辑版本2 #

stoplossforSell= input(defval=1.02,title="stoploss for sell")
stoplossforBuy= input(defval=0.98,title="Stoploss for buy")

if(bhigh[1]>upper[1] and bhigh[1]>bhigh and open[1]>close[1] and macd<signal2 )
    strategy.close("long")
    strategy.entry("short",strategy.short)


if (strategy.position_size < 0)
    strategy.exit("Exit short", from_entry="short", stop=low * stoplossforSell)
    strategy.entry("long", strategy.long, stop=low * stoplossforSell)
    

if(blow[1]<lower[1] and blow[1]<blow and open[1]<close[1] and macd>signal2)
    strategy.close("short")
    strategy.entry("long",strategy.long)


if (strategy.position_size > 0)
    strategy.exit("Exit long", from_entry="long", stop=low * stoplossforBuy)
    strategy.entry("short", strategy.short, stop=low * stoplossforBuy)

内容的提问来源于stack exchange，提问作者Kristen