同花顺中的主力买卖指标怎么看？

同花顺中的主力买卖指标怎么看？红柱表示当天主力买入量,绿柱表示当天主力卖出量，黄线表示净买卖量（即买入量与 卖出量差值），如果统计的是多日，黄线则表示这几天平均的净买卖量。

N:=3;N1:=5;

r1:=ZDMR[-1];

r2:=BDMR[-1];

r3:=-ZDMC[-1];

r4:=-BDMC[-1];

a:=(r1+r2);

b:=(r3+r4);

d:=a+b;

e:=a-b;

STICKLINE(C>REF(C,1),0,e,8,1),colorred;

STICKLINE(C<=REF(C,1),0,e,8,1),colorfff000;

STICKLINE(d<0,-d,0,8,0),color00ff00;

STICKLINE(d>0,d,0,8,0),color00ffff;

STICKLINE(C,a,0,4,0),coloraa00bb;

STICKLINE(C,a,0,3,0),colorcc22bb;

STICKLINE(C,a,0,2,0),colordd33bb;

STICKLINE(C,a,0,1,0),coloree44bb;

STICKLINE(C,a,r1,4,0),color2266aa;

STICKLINE(C,a,r1,3,0),color3377cc;

STICKLINE(C,a,r1,2,0),color4488dd;

STICKLINE(C,a,r1,1,0),color9955ee;

STICKLINE(C,e,a,4,0),coloraaaaaa;

STICKLINE(C,e,a,3,0),colorbbbbbb;

STICKLINE(C,e,a,2,0),colorcccccc;

STICKLINE(C,e,a,1,0),colordddddd;

STICKLINE(C,e,a-r4,4,0),Colorff6600;

STICKLINE(C,e,a-r4,3,0),Colorff7722;

STICKLINE(C,e,a-r4,2,0),Colorff8833;

STICKLINE(C,e,a-r4,1,0),Colorff9955;

mv5:MA(e,5);

mv10:MA(e,10);

mv35:MA(e,35);

mv135:MA(e,135);

a3:=SUM(a,n)/1000000;

b3:=SUM(b,n)/1000000;

VOL1=SUM(VOL,n)/1000000;

y:=a3-b3;

z:=y/VOL1*100;

// TOSTRING(n,0)+"天机构买入"+TOSTRING(a3,1)+"万手,卖出"+TOSTRING(b3,1)+"万手.净买入"+TOSTRING(y,1)+"万手.占总成交"+TOSTRING(z,1)+"％.";

TOSTRING(n1,0)+"天机构买入"+TOSTRING(a3,1)+"万手,卖出"+TOSTRING(b3,1)+"万手.净买入"+TOSTRING(y,1)+"万手.占总成交"+TOSTRING(z,1)+"％.";