大小单买卖指标 (源码)

a2:=SUM((IF(((a1 40) AND (CLOSE (REF(CLOSE,1)))),a1,0)),0);
a3:=SUM((IF(((a1 40) AND (CLOSE (REF(CLOSE,1)))),a1,0)),0);
a4:=SUM((IF(((a1 40) AND (CLOSE (REF(CLOSE,1)))),a1,0)),0);
a5:=SUM((IF(((a1 40) AND (CLOSE (REF(CLOSE,1)))),a1,0)),0);
大单:(a2)-(a3),linethick2,Colorf00ff0;
小单: (a4)-(a5),linethick2,Colorgreen;