这个是怎么回事？？

代码如下：

[Description("5日均线向上突破10日均线做多")]

[Version(1)]

// 输入参数

Inputs:

   ShortTermMA(5),

   LongTermMA(10),

   StopLossPercent(2),

   TakeProfitPercent(5);

// 变量声明

Vars:

   PositionOpen(False),

   EntryPrice(0),

   HighestSinceEntry(0),

   LowestSinceEntry(0);

// 计算移动平均线

Plot1(MA(Close, ShortTermMA), "5日均线");

Plot2(MA(Close, LongTermMA), "10日均线");

// 开仓条件：5日均线上穿10日均线

If (MA(Close, ShortTermMA) Crosses Above MA(Close, LongTermMA)) and not PositionOpen then

begin

   Buy("Buy") Next Bar at Market;

   PositionOpen = True;

   EntryPrice = Close;

   HighestSinceEntry = Close;

end;

// 平仓逻辑

If PositionOpen then

begin

   // 更新最高价和最低价

   If Close > HighestSinceEntry then HighestSinceEntry = Close;

   If Close < LowestSinceEntry or LowestSinceEntry = 0 then LowestSinceEntry = Close;

   // 止损：亏损2%

   If Close <= EntryPrice * (1 - StopLossPercent / 100) then

   begin

       Sell("StopLoss") Next Bar at Market;

       PositionOpen = False;

   end;

   // 止盈：从最高位回撤5%

   If HighestSinceEntry > 0 and Close <= HighestSinceEntry * (1 - TakeProfitPercent / 100) then

   begin

       Sell("TakeProfit") Next Bar at Market;

       PositionOpen = False;