长线1:IF(SD =SP,SD,SP),LINETHICK1,coloryellow; 长线2:IF(SP-SD,SP,SD),LINETHICK3,COLORBLUE; A1:=EMA(CLOSE,7)-EMA(CLOSE,21); B1:=EMA((0.668*REF(A1,1)+0.333*A1),1); 做多:IF(A1 =B1,A1,B1),LINETHICK1,COLORRED; 做空:IF(B1-A1,B1,A1),LINETHICK1,COLORGREEN;