把下面图同时出现坚定和买入选出来。坚定买入指标如下：VAR1:=BACKSET(REF(HIGH,2)=HHV(HIGH,5),3);VAR2:=CROSS(VAR1,0.9);VAR3:=BACKSET(REF(LOW,2)=LLV(LOW,5),3);VAR4:=CROSS(VAR3,0.9);VAR5:=IF(VAR2,HIGH,IF(VAR4,LOW,0));VAR6:=BACKSET(REF(HIGH,2)=HHV(HIGH,5) AND LOW编写条件：