MA1:=MA(CLOSE,20);MA2:=MA(CLOSE,120);MA3:=MA(CLOSE,250);VAR1:=MA(V,5)>MA(V,60);XG1:CROSS(MA1,MA2);叉半年线:CROSS(MA1,MA2) AND VAR1;叉年线:CROSS(MA1,MA3) AND VAR1