主题：请教平台突破下单交易系统问题

编了一个平台突破下单的简单交易系统

1、设置一个区间，ceilprice为上轨，floorprice为下轨，突破上轨买入2手，突破下轨卖出2手

2、设置止损为loss，如果浮赢达到一定数额（loss+fee）平掉1手，剩下1手追踪止赢，梯度为dispoint

好像无法实现下单功能，不知道是啥原因，代码如下

 input:ceilprice(6788,3000,9000),floorprice(6781,3000,9000),loss(12,0,100),num(2,2,100),dispoint(12,2,600),fee(20,0,60);

       variable:longfuying=0,shortfuying=0,longyk=0,shortyk=0;

      //第一步，设置上下价,num=2
      IF holding=0 then
      begin
      longfuying:= 0;
      shortfuying:=0;
      longchase:=0;
      shortchase:=0;
      longyk:=0;
      shortyk:=0;
      BUY(holding=0,num,STOP,ceilprice);//市价超过上限时买入
      BUYSHORT(holding=0,num,STOP,floorprice);//市价低于下限时沽出
      end     
     
      //第二步，设止损，设初步止盈
      IF ABS(holding)=num then
      begin        
      SELL(holding>0,holding,STOPR,ENTERPRICE-loss);
      SELLSHORT(holding<0,holding,STOPR,ENTERPRICE+loss);
      SELL(holding > 0,num*0.5,LIMITR,ENTERPRICE+loss+fee);
      SELLSHORT(holding < 0,num*0.5,LIMITR,ENTERPRICE-loss-fee);                  
      end
     
       //第三步，跟踪止损 
     longyk:=HHV(H,ENTERBARS)-enterprice-fee;
     shortyk:=enterprice-LLV(L,ENTERBARS)-fee;
       if holding>0 then //持仓为多单时
        if longyk>0 then
           begin
                longfuying:=longyk;
                longchase:=longfuying-mod(longfuying,dispoint)+enterprice-loss;
           end
        else
           begin
           longfuying:=0;
           longchase:=enterprice-loss;
           end
          
       if holding <0  then//持仓为空单时
         if shortyk>0 then
           begin
               
                shortfuying:=shortyk;
                shortchase:=enterprice+loss-(shortfuying-mod(longfuying,dispoint));
           end
         else
           begin
           shortfuying:=0;
           shortchase:=enterprice+loss;
           end
          
      
      IF ABS(holding)=num*0.5 then
      begin
      SELL(holding>0,holding,STOPR,longchase);
      SELLSHORT(holding<0,holding,STOPR,shortchase);
      end