TradingView Pine Script策略修复：实现条件持仓，避免逐K线开平仓

原策略存在的问题：每根满足条件的K线都会重复执行开平仓操作，不符合「首次满足开仓条件时开仓，持仓直到平仓条件触发再平仓」的需求。

原代码 #

//@version=5
strategy("test", overlay = false, process_orders_on_close=true)

// Input
Period1 = input(7, title = "Period1")
Period1 = input(14, title = "Period2") // 注：此处变量重复赋值，建议改为 Period2 = input(14, title = "Period2")

// Calculate Stochastics
stoch1 = ta.stoch(close, Period1)
stoch2 = ta.stoch(close, Period2)

// Variables
var bool entered = false

// Count positive/negative CCIs
positiveStoch = (stoch1 > 0 ? 1 : 0) + (stoch2 > 0 ? 1 : 0)
negativeStoch = (stoch1 < 0 ? 1 : 0) + (stoch2 < 0 ? 1 : 0)

// Entry conditions
entryLong = positiveStoch >= 2
entryShort = negativeStoch >= 2

// Exit condition
exitLong = positiveStoch <= 1
exitShort = negativeStoch <= 1


// Variables
var bool entered = false

// Entry and exit logic
if entryLong and not entered
    strategy.entry("Long", strategy.long)
    entered := true

else if entryShort and not entered
    strategy.entry("Short", strategy.short) 
    entered := true 
    
if (exitLong or exitShort)
    strategy.close("Long")
    strategy.close("Short")
    entered := false

优化核心思路 #

拆分多空持仓状态，分别用enteredLong和enteredShort跟踪多头、空头持仓情况：

• 开仓时，若当前持有反向仓位，先平仓再开新仓
• 平仓仅在对应持仓状态激活且满足平仓条件时执行，避免无持仓时误操作
• 确保仅在首次满足开仓条件时触发开仓，不会重复执行

修正后的代码 #

//@version=5
strategy("test", overlay = false, process_orders_on_close=true)

// Input
Period1 = input(7, title = "Period1")
Period2 = input(14, title = "Period2") // 修正原代码变量重复赋值问题

// Calculate Stochastics
stoch1 = ta.stoch(close, Period1)
stoch2 = ta.stoch(close, Period2)

// Count positive/negative CCIs
positiveStoch = (stoch1 > 0 ? 1 : 0) + (stoch2 > 0 ? 1 : 0)
negativeStoch = (stoch1 < 0 ? 1 : 0) + (stoch2 < 0 ? 1 : 0)

// Entry conditions
entryLong = positiveStoch >= 2
entryShort = negativeStoch >= 2

// Exit condition
exitLong = positiveStoch <= 1
exitShort = negativeStoch <= 1

// Variables：分别跟踪多空持仓状态
var bool enteredLong = false
var bool enteredShort = false

// Entry and exit logic
if entryLong and not enteredLong
    if enteredShort
        strategy.close("Short")
        enteredShort := false
    strategy.entry("Long", strategy.long)
    enteredLong := true

if entryShort and not enteredShort
    if enteredLong
        strategy.close("Long")
        enteredLong := false
    strategy.entry("Short", strategy.short) 
    enteredShort := true 
    
if enteredLong and exitLong
    strategy.close("Long")
    enteredLong := false

if enteredShort and exitShort
    strategy.close("Short")
    enteredShort := false

内容的提问来源于stack exchange，提问作者Larry Cai