PineScript -设置% Stoploss

//@version=5
strategy("百分比止损策略示例", overlay=true)

// 输入参数
stopLossPercent = input.float(1.0, title="止损百分比", step=0.1, minval=0.1) // 止损百分比，例如1.0表示1%
takeProfitPercent = input.float(2.0, title="止盈百分比", step=0.1, minval=0.1) // 止盈百分比，例如2.0表示2%

// 获取当前持仓的价格
var float entryPrice = na
if strategy.position_size > 0
    entryPrice := strategy.opentrades.entry_price(strategy.opentrades.entry_bar_index(strategy.position_size > 0 ? 0 : na))

// 计算止损和止盈价格
stopLossPrice = entryPrice * (1 - stopLossPercent / 100)
takeProfitPrice = entryPrice * (1 + takeProfitPercent / 100)

// 绘制裁损和止盈线
plot(entryPrice, "入场价", color=color.blue, linewidth=2, offset=-bar_index)
plot(stopLossPrice, "止损价", color=color.red, linewidth=2, offset=-bar_index)
plot(takeProfitPrice, "止盈价", color=color.green, linewidth=2, offset=-bar_index)

// 策略逻辑
if (strategy.position_size == 0)
    // 入场条件，例如价格突破移动平均线
    if ta.crossover(close, ta.sma(close, 20))
        strategy.entry("Long", strategy.long)

// 检查是否需要止损或止盈
if (strategy.position_size > 0)
    if close <= stopLossPrice
        strategy.close("Long", comment="止损")
    elseif close >= takeProfitPrice
        strategy.close("Long", comment="止盈")