为何有仓位仍然开仓？

Params Numeric notbef(930); //Time Numeric notaft(1456); //Time Numeric notbef1(2130); //Time Numeric notaft1(2256); //TimeVarsNumeric TurtleUnits(1); // 交易手数Bool SendOrderThisBar(False); // 当前Bar有过交易EventsOnBar(ArrayRef<Integer> indexs){If(MarketPosition ==0 && (Time>notbef/10000 and Time<notaft/10000) || (Time>notbef1/10000 and Time<notaft1/10000)){If( close >High[1]){Buy(TurtleUnits,Close);SendOrderThisBar = True;}If( close<Low[1]){SellShort(TurtleUnits,Close);SendOrderThisBar = True;}} if(marketposition!=0 and Time>=0.1456 && Time<=0.15) { BuyToCover(0,Close); Sell(0,Close); } if(marketposition!=0 and Time>=0.2256 && Time<=0.23) { BuyToCover(0,Close); Sell(0,Close); } }日内交易，无仓位MarketPosition ==0 开仓一手，未何有仓位仍然开创，改成MarketPosition <>1 || MarketPosition <>-1，仍然不行， 怎么修改