分钟K线图计算有问题

If(HighD(1)>HighD(2) and CloseD(1)>CloseD(2) and LowD(1)>LowD(2) )isDK= 1; If(HighD(1)<HighD(2) and CloseD(1)<CloseD(2) and LowD(1)<LowD(2) )isDK=-1; If(isDK== 1 And Time==0.0930) PlotBool("aaaa",True,Open); If(isDK==-1 And Time==0.0930) PlotBool("aaaa",False,Open);为何今天的3分钟K线图的IM2609，计算出来isDK==-1，而HIGHD,LOWD,CLOSED昨天明显大于前天。