以下是根据L2编制的【逐笔大单统计】，主力动向一目了然（代码和图）
逐笔买入大单:=LARGETRDINNUM;
逐笔卖出大单:=LARGETRDOUTNUM,LINETHICK3;
DDM:SUM(逐笔买入大单,5),LINETHICK3;
DDN:SUM(逐笔卖出大单,5),LINETHICK3;
H1:=HHV(DDM,20);
H2:CONST(REF(H1,5));
DRAWBAND(DDM,90,H2,RGB(39,0,39));
DRAWBAND(DDM,90,DDN,RGB(255,215,0));
H3:CONST(REF(H1,20)),COLORBROWN,DOTLINE;
H4:CONST(REF(H1,10)),COLORBROWN,DOTLINE;
DRAWICON(CROSS(DDM,DDN) AND DDM>DDN,DDN,3);
DRAWTEXT(CROSS(DDM,H2) AND DDM>DDN,H2,'追'),COLORYELLOW;
