博易大师长线

长多防守价:=EMA(LOW,20),COLORRED; 长空防守价:=EMA(HIGH,20),COLORGREEN; A1:=IF(CROSS(CLOSE,长空防守价),1,IF(CROSS(长多防守价,CLOSE),-1,0)); A2:=REF(A1,BARSLAST(A1)); A3:=IF(A2=1,长多防守价,IF(A2=-1,长空防守价,0)); PARTLINE(A3>0,A3),LINETHICK2; PARTLINE(A2=1 AND REF(A2,1)=1,长多防守价),LINETHICK3,COLORRED; PARTLINE(A2=-1 AND REF(A2,1)=-1,长空防守价),LINETHICK3,COLORGREEN;