为什么能在连续合于上开仓，但是平不了仓，把里面的RelativeSymbol()改成Symbol()就能在主力合约上既能开仓，也能平仓

Params Numeric length1(5); Numeric length2(10); Numeric length8(144); Numeric money(100); //固定市值开仓：单位万 Vars Plot plt; String tableName("账户资金"); String RelativeSymbol("主力合约"); Numeric myprice; //委托价格 Numeric ma1; Numeric ma2; Numeric ma8; Plot PlotNumeric; Global Integer sendCount(0); Global Integer fillCount(0); Numeric lots; //委托数量 Numeric fet; Events OnInit() { //=========除权换月相关设置============== AddDataFlag(Enum_Data_RolloverBackWard()); //设置后复权 AddDataFlag(Enum_Data_RolloverRealPrice()); //设置映射真实价格 AddDataFlag(Enum_Data_AutoSwapPosition()); //设置自动换仓 AddDataFlag(Enum_Data_IgnoreSwapSignalCalc()); //设置忽略换仓信号计算 //=========交易相关设置============== SetInitCapital(1000000); //设置初始资金为100万 } OnReady() { Print("RelativeSymbol:" + RelativeSymbol()); } OnBar(ArrayRef<Integer> indexs) { ma1=AverageFC (Close, 5); ma2=AverageFC (Close, 10); ma8=AverageFC (Close, 144); myprice=Open/rollover; //这里使用open/rollover,更为精确的是使用委托价格.Rollvoer是系统提供的复权系数，真实价格= 后复权的价格/rollover。 lots=IntPart(money*10000/(myprice*contractunit*BigPointValue)); //计算开仓手数 If(BarStatus != 2) { Return; } Array<Integer> orders; Print("ma1:"+Text(ma1)); Print("ma2:"+Text(ma2)); Print("ma8:"+Text(ma8)); If(BarStatus == 2 && High == Low) Return; If ( Q_Last == 0 || ( Date != Date[1] && High == Low ) ) Return; if(ma1>ma8&&ma2>ma8&&A_TotalPosition==0&&BarStatus == 2 && sendCount == 0)//当5日线10日线上穿144日线开多 { Bool ret = A_Buy(RelativeSymbol(), lots, Q_AskPrice, orders, "", ""); Print("A_Buy:" + IIFString(ret, "True", "False") + "," + TextArray(orders)); if(ret) { sendCount =sendCount+1; } } if( ma1<ma8&&ma2<ma8&&A_BuyPosition>0&&BarStatus == 2 && sendCount == 1)//当5日线10日线下穿144日线平多 { Bool ret = A_Sell(RelativeSymbol(), lots, Q_BidPrice, orders, "", ""); Print("A_Sell:" + IIFString(ret, "True", "False") + "," + TextArray(orders)); if(ret) { sendCount =sendCount-1 ; } } if(ma1<ma8&&ma2<ma8&&A_TotalPosition ==0&&BarStatus == 2 && sendCount == 0)//当5日线10日线下穿144日线开空 { Bool ret = A_SellShort(RelativeSymbol(), lots, Q_BidPrice, orders, "", ""); Print("A_SellShort:" + IIFString(ret, "True", "False") + "," + TextArray(orders)); if(ret) { sendCount =sendCount-1 ; } } if(ma1>ma8&&ma2>ma8&&A_SellPosition>0&&BarStatus == 2 && sendCount == -1)//当5日线10日线上穿144日线平空 { Bool ret = A_BuyToCover(RelativeSymbol(),lots, Q_AskPrice, orders, "", ""); Print("A_BuyToCover:" + IIFString(ret, "True", "False") + "," + TextArray(orders)); if(ret) { sendCount =sendCount+1; } } }