仿钱龙的免费主力持仓线，比收费的更准确，更直观【通达信】

N:=22;JJ:=(HIGH+LOW+CLOSE)/3;QJ0:=VOL/IF(HIGH=LOW,4,HIGH-LOW);
QJ1:=IF(CAPITAL=0,QJ0*(JJ-MIN(CLOSE,OPEN)),QJ0*IF(HIGH=LOW,1,(MIN(OPEN,CLOSE)-LOW)));
QJ2:=IF(CAPITAL=0,QJ0*(MIN(OPEN,CLOSE)-LOW),QJ0*IF(HIGH=LOW,1,(JJ-MIN(CLOSE,OPEN))));
QJ3:=IF(CAPITAL=0,QJ0*(HIGH-MAX(OPEN,CLOSE)),QJ0*IF(HIGH=LOW,1,(HIGH-MAX(OPEN,CLOSE))));
QJ4:=IF(CAPITAL=0,QJ0*(MAX(CLOSE,OPEN)-JJ),QJ0*IF(HIGH=LOW,1,(MAX(CLOSE,OPEN)-JJ)));
SVZL:SUM(((QJ1+QJ2)-(QJ3+QJ4))/SUM(VOL,60),0);
CZ:=SVZL-REF(SVZL,1);
STICKLINE(CZ<0,SVZL+CZ,SVZL,1,0),COLORFFFF00;
STICKLINE(CZ>0,SVZL,SVZL+CZ,1,0),COLORRED;