請老師幫忙把下面公式編寫壹個條件選股 謝謝

MA10:=MA(C,10);

MA20:=MA(C,20);

ZF:=(C-O)/O*100>4;

BIAS20:=(CLOSE-MA(CLOSE,5))/MA(CLOSE,5)*100*VOL;

BIAS21:=(CLOSE-MA(CLOSE,5))/MA(CLOSE,5)*100*C;

量:BARSLAST(BARSLAST(BIAS20>0 AND REF(BIAS20,1)>0)>0),STICK,colorred,LINETHICK4;

價:=BARSLAST(BARSLAST(BIAS21>0 AND REF(BIAS21,1)<0)>0),STICK,colormagenta,LINETHICK4;

黑馬:量=0 AND ZF AND CROSS(C,MA5) AND CROSS(C,MA10) AND CROSS(C,MA20),colorred,CIRCLEDOT,LINETHICK2;

STICKLINE(黑馬,0,5,1.5,0),colorwhite;

DRAWICON(黑馬,6,'BUY');

DRAWTEXT(黑馬,4,'---黑馬'),coloryellow;

STICKLINE(價,-1,0,1.5,0),colormagenta;

XG: 黑馬=1;

同花順條件選股測試通過，通達信只能用技術指標選股。