为朋友写的13日内KD二次金叉选股公式： RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100; K:=SMA(RSV,3,1),LINETHICK1; D:=SMA(K,3,1),LINETHICK1; J:=3*K-2*D,LINETHICK1; XG:CROSS(K,D) AND COUNT(CROSS(K,D) AND FILTER(CROSS(K,D),5),13)>1; 过滤了五天内连续金叉的情况
