看空:INVOL/100;
看多:OUTVOL/100;
DRAWTEXT(OUTVOL>INVOL AND CLOSE<OPEN,0,'$');
DRAWTEXT(OUTVOL>(INVOL+INVOL),0,'X');
DRAWTEXT(OUTVOL<INVOL AND CLOSE>OPEN,0,'V');
DRAWTEXT((OUTVOL+OUTVOL)<INVOL,0,'X');

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