将出现红箭头处改成选股预警信号

编写要求：

筹码空间:IF(WINNER(CLOSE),WINNER(CLOSE)*100,20),VOLSTICK; TX80:80,POINTDOT COLORYELLOW; DX20:20,POINTDOT COLORGREEN; VAR1:=LLV(LOW,21); VAR2:=HHV(HIGH,21); K: EMA((CLOSE-VAR1)/(VAR2-VAR1)*100,6),COLORRED; D: EMA(0.667*REF(K,1)+0.333*K,2),COLORGREEN; VAR3:=LLV(LOW,55); VAR4:=HHV(HIGH,34); VAR5:=EMA((CLOSE-VAR3)/(VAR4-VAR3)*100,3); VAR6:=(K+VAR5)/2; VAR7:=EMA(0.667*REF(VAR5,1)+0.333*K,2); VAR8:=EMA(VAR6,5); VAR9:EMA(0.667*REF(VAR8,1)+0.333*VAR8,2); DRAWICON(LONGCROSS(D,K,0.1),D,2),COLORRED; DRAWICON(LONGCROSS(K,D,0.1),K,1),COLORGREEN;

解答：

?VAR1:=LLV(LOW,21);

VAR2:=HHV(HIGH,21);