编写要求：
当天收盘价站上无穷成本均线的选股公式。
www.gszx.com.cn网解答：
JJJ:=IF(DYNAINFO(8)>0.01,0.01*DYNAINFO(10)/DYNAINFO(8),DYNAINFO(3));
DDD:=(DYNAINFO(5)<0.01 || DYNAINFO(6)<0.01);
JJJT:=IF(DDD,1,(JJJ<(DYNAINFO(5)+0.01) AND JJJ>(DYNAINFO(6)-0.01)));
CYC∞:=IF(JJJT,DMA(AMOUNT/(100*VOL),100*VOL/FINANCE(7)),EMA((HIGH+LOW+CLOSE)/3,120));
CROSS(C,CYC∞);
