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; 红箭头:LONGcrOSS(K,D,0.1);