改 跟进 选股

编写要求：

解答：

?网友求助：

N:=9;M1:=3;M2:=3;
RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
K:SMA(RSV,M1,1);
D:SMA(K,M2,1);
J:3*K-2*D;
跟进:IF(CROSS(K,D) OR CROSS(REF(K,1),REF(D,1)) OR CROSS(REF(K,2),REF(D,2)),10,0),COLORYELLOW;
?