OPEN-SOURCE SCRIPT

MA均线全仓回测

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//version=5
strategy("39日MA均线全仓交易策略 (2017-2025)",
overlay=true,
initial_capital=1000,
commission_type=strategy.commission.percent,
commission_value=0.1,
pyramiding=0)

// 策略参数
startDate = input.time(timestamp("2017-08-01T00:00:00"), title="回测开始日期")
endDate = input.time(timestamp("2025-11-11T23:59:59"), title="回测结束日期")
maLength = input.int(39, title="MA周期", minval=1)
useSMA = input.bool(true, title="使用SMA(简单移动平均)")

// 计算移动平均线
maValue = useSMA ? ta.sma(close, maLength) : ta.ema(close, maLength)

// 绘制MA线
plot(maValue, color=color.new(color.blue, 0), linewidth=2, title="39日MA")

// 确定是否在回测时间范围内
inDateRange = time >= startDate and time <= endDate

// 交易逻辑 - 全仓交易
if inDateRange
// 生成交易信号:价格上穿MA时全仓买入,下穿MA时全仓卖出
longCondition = ta.crossover(close, maValue)
shortCondition = ta.crossunder(close, maValue)

// 执行交易 - 全仓操作
if longCondition
strategy.entry("全仓买入", strategy.long, qty=strategy.equity/close)

if shortCondition
strategy.close("全仓买入", comment="全仓卖出")

// 在回测时间范围外显示背景色
bgcolor(inDateRange ? color.new(color.green, 95) : na, title="回测期间背景")

// 添加性能统计和资金曲线
var float totalReturn = 0.0
if barstate.islast and inDateRange
totalReturn := ((strategy.netprofit + 1000) / 1000 - 1) * 100
label.new(bar_index, high,
text="回测结果:\n初始资金: 1000 USDT\n最终权益: " + str.tostring(strategy.netprofit + 1000, "#.##") + " USDT\n总收益率: " + str.tostring(totalReturn, "#.##") + "%\n总交易次数: " + str.tostring(strategy.closedtrades) + "次",
style=label.style_label_down, color=color.new(color.blue, 80), textcolor=color.white, size=size.normal)

// 绘制权益曲线
plot(strategy.equity, title="资金曲线", color=color.new(color.purple, 0), linewidth=1, trackprice=true)

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