网友求助：
A1:=(EMA(((O+H+L+C)/4),3)+EMA(((O+H+L+C)/4),6)+EMA(((O+H+L+C)/4),9))/3;
A2:(EMA(((O+H+L+C)/4),5)+EMA(((O+H+L+C)/4),10)+EMA(((O+H+L+C)/4),20))/3;
A3:=(EMA(((O+H+L+C)/4),7)+EMA(((O+H+L+C)/4),14)+EMA(((O+H+L+C)/4),28))/3;
A4:=(EMA(((O+H+L+C)/4),9)+EMA(((O+H+L+C)/4),18)+EMA(((O+H+L+C)/4),36))/3;
A5:=(EMA(((O+H+L+C)/4),11)+EMA(((O+H+L+C)/4),22)+EMA(((O+H+L+C)/4),44))/3;
A6:=(EMA(((O+H+L+C)/4),13)+EMA(((O+H+L+C)/4),26)+EMA(((O+H+L+C)/4),52))/3;
A7:(EMA(((O+H+L+C)/4),21)+EMA(((O+H+L+C)/4),34)+EMA(((O+H+L+C)/4),55))/3;
在符合（1）条件的地方标示：“金叉”字样
（1）并请编一个这样的选股公式： A2>A3>A4>A5>A6>A7
解答如下：
A1:=(EMA(((O+H+L+C)/4),3)+EMA(((O+H+L+C)/4),6)+EMA(((O+H+L+C)/4),9))/3;
A2:(EMA(((O+H+L+C)/4),5)+EMA(((O+H+L+C)/4),10)+EMA(((O+H+L+C)/4),20))/3;
A3:=(EMA(((O+H+L+C)/4),7)+EMA(((O+H+L+C)/4),14)+EMA(((O+H+L+C)/4),28))/3;
A4:=(EMA(((O+H+L+C)/4),9)+EMA(((O+H+L+C)/4),18)+EMA(((O+H+L+C)/4),36))/3;
A5:=(EMA(((O+H+L+C)/4),11)+EMA(((O+H+L+C)/4),22)+EMA(((O+H+L+C)/4),44))/3;
A6:=(EMA(((O+H+L+C)/4),13)+EMA(((O+H+L+C)/4),26)+EMA(((O+H+L+C)/4),52))/3;
A7:(EMA(((O+H+L+C)/4),21)+EMA(((O+H+L+C)/4),34)+EMA(((O+H+L+C)/4),55))/3;
DRAWTEXT(CROSS(A2,A7),L*0.95,'金叉'),COLORRED;
选股公式
A2:=(EMA(((O+H+L+C)/4),5)+EMA(((O+H+L+C)/4),10)+EMA(((O+H+L+C)/4),20))/3;
A3:=(EMA(((O+H+L+C)/4),7)+EMA(((O+H+L+C)/4),14)+EMA(((O+H+L+C)/4),28))/3;
A4:=(EMA(((O+H+L+C)/4),9)+EMA(((O+H+L+C)/4),18)+EMA(((O+H+L+C)/4),36))/3;
A5:=(EMA(((O+H+L+C)/4),11)+EMA(((O+H+L+C)/4),22)+EMA(((O+H+L+C)/4),44))/3;
A6:=(EMA(((O+H+L+C)/4),13)+EMA(((O+H+L+C)/4),26)+EMA(((O+H+L+C)/4),52))/3;
A7:=(EMA(((O+H+L+C)/4),21)+EMA(((O+H+L+C)/4),34)+EMA(((O+H+L+C)/4),55))/3;
XG:A2>A3 AND A3>A4 AND A4>A5 AND A5>A6 AND A6>A7;
