主题：帮忙看一下这个模型有什么问题

这个模型是做夜盘的，测试的时候怎么没有信号出现呢？

INPUT:NOFFSET(1,0,20,1);

 HH:=VALUEWHEN(TIME=012500,HHV(C,5));//日内前5根K线的最高价
 LL:=VALUEWHEN(TIME=012500,LLV(C,5));//日内前5根K线的最低价

 IF TIME=CLOSETIME(0) THEN
  BEGIN
   N:=0;
   M:=0;//一天只交易一次
END
LONG:=TIME>012500 AND N=0 AND HOLDING=0 AND TIME<054500;
  //开仓条件
IF LONG AND HIGH>HH  THEN
  BEGIN
  BUY(1,1,LIMITR,HH+NOFFSET*MINDIFF),IGNORECHECKPRICE;
  N:=N+1;
END
IF LONG AND LOW<LL THEN
  BEGIN
   BUYSHORT(1,1,LIMITR,LL-NOFFSET*MINDIFF),IGNORECHECKPRICE;
  N:=N+1;
END
  //平仓条件
IF TIME>=025000 AND M=0 THEN
  BEGIN
  SELL(HOLDING>0,0,LIMITR,OPEN-NOFFSET*MINDIFF),IGNORECHECKPRICE;
SELLSHORT(HOLDING<0,0,LIMITR,OPEN+NOFFSET*MINDIFF),IGNORECHECKPRICE;
   M:=M+1;
END