哪里不对 能帮我改下吗

Params Numeric FastLength(12); Numeric SlowLength(26); Numeric MACDLength(9); Numeric LOTS(1);Vars Series<Numeric> MACDValue; series<Numeric> AvgMACD; series<Numeric> MACDdiff;Events onBar(ArrayRef<Integer> indexs) //计算MACD { MACDValue = XAverage( Close, FastLength ) - XAverage( Close, SlowLength ); AvgMACD = XAverage(MACDValue,MACDLength); MACDDiff = MACDValue - AvgMACD; PlotNumeric(\"MACD\",MACDValue); PlotNumeric(\"MACDAvg\",AvgMACD); If (MACDDiff >= 0) PlotAuto(\"MACD\",MACDDiff,0,Red); Else PlotAuto(\"MACD\",MACDDiff,0,Green); PlotNumeric(\"零线\",0); } //判断是否做多 If(MarketPosition <>1 && MacdDiff[1] > 0) { Buy(Lots.Open); } //判断是否做空 If (MarketPosition <> 1 And MacdDiff[1] < 0) { SelShort(Lots,Open); }