老师帮忙看哈这源码怎么编译不过

ParamsNumeric Length1(20);Numeric Length2(60);Numeric Length3(180);Numeric BreakMin(2);Numeric BreakMax(20);Numeric Lots(1);VarsSeries<Numeric> MA1;Series<Numeric> MA2;Series<Numeric> MA3;Series<Numeric> MADiff;Series<Numeric> LowPrice;Series<Numeric> HighPrice;Series<Numeric> LowPrice2;Series<Numeric> HighPrice2;Events//此处实现事件函数//Bar更新事件函数，参数indexs表示变化的数据源图层ID数组OnBar(ArrayRef<integer> indexs){ //计算三条均线MA1=AverageFC(Close,Length1);MA2=AverageFC(Close,Length2);MA3=AverageFC(Close,Length3);PlotNumeric(\"MA1\",MA1);PlotNumeric(\"MA2\",MA2);PlotNumeric(\"MA3\",MA3);//Commentary(\"利用上根均线计算下根均线MA1:“+Text( (MA1[1]*(Length1-1)+Close)/Length1 ));//判断均线上穿情况MADiff= Abs(MA1[1]-MA2[1]) ;LowPrice=(BreakMin*Length1*Length2+Length1*Summation(Close,Length2-1) -Length2*Summation(Close,Length1-1))/(Length2-Length1);HighPrice=(BreakMax*Length1*Length2+length1*Summation(Close,Length2-1)-Length2*Summation(Close,Length1-1))/(Length2-Length1);HighPrice2=(BreakMax*Length1*Length2+length1*Summation(Close,Length2-1)+Length2*Summation(Close,Length1-1))/(Length2-Length1);LowPrice2=(Breakmax*Length1*Length2-Length1*Summation(Close,Length2-1)+Length2*Summation(Close,Length1-1))/(Length1-Length2);Commentary(\"下根K线可以成交的最低价:\"-Text(LowPrice2));Commentary(\"下根K线可以成交的最高价:\"+Text(HighPrice2));Commentary(\"两条均线上次之差:\"+Text(Abs(MA1[1]-MA2[1])));Commentary(\"两条均续本次之差:\"+Text(Abs(MA1-MA2)));//开仓If (MarketPosition == 0 And Vol> 0 And MA1>MA2){If (Open>=LowPrice[1] And Open<HighPrice[1]){ Buy(Lots,Open); }Else If (Open>=HighPrice[1] And Low<HighPrice[1]) { Buy(Lots,HighPrice[1]); }Else If (Open<LowPrice[1] And High>=LowPrice[1]) { Buy(Lots,LowPrice[1]); } } If (MarketPosition == 0 And Vol>0 And MA1<MA2) { If (Open>=LowPrice2[1] And Open<HighPrice2[1]) { Sellshort(Lots,Open); }Else If (Open>=HighPrice2[1] And Low<HighPrice2[1]) { SellShort(Lots,HighPrice2[1]); }Else If (Open<LowPrice2[1] And High>=LowPrice2[1]) { SellShort(Lots,LowPrice2[1]); } } if(MarketPosition==1 And Vol> 0 And MA1[1]<MA2[1] And MADiff>10) { Sell(0,Open); } If (MarketPosition==-1 And Vol>0 And ma1>MA2[1] And MADiff>10) { Sell(0,Open); } If(MarketPosition==-1 And Vol>0 And MA1[1]>MA2[1] And MADiff>10) { BuyToCover(0,Open); } }