判断语句失效

请问老师，为什么没有限制在32到 64的bar之间开仓，这个判断条件没有起作用？ Params Vars Integer lots_num; Events OnBar(ArrayRef<Integer> indexs) { Commentary("BarsSinceToday:"+Text(BarsSinceToday)); lots_num=1; //做多 if(MarketPosition == 0) { if(BarsSinceToday >=32 And BarsSinceToday < 64) { Buy(lots_num,Close); } } //做空 if(MarketPosition == 0) { if(BarsSinceToday >=32 And BarsSinceToday < 64) { SellShort(lots_num,Close); } } //平仓 Commentary("MarketPosition = " + Text(MarketPosition)); if(BarsSinceToday == 67 and MarketPosition > 0) { Commentary("MarketPosition = " + Text(MarketPosition)); Sell(0, Close[1]); } if(BarsSinceToday == 67 And MarketPosition < 0) { Commentary("MarketPosition = " + Text(MarketPosition)); BuyToCover(0, Close[1]); } }