月线KDJ选股

周期：用月线。

RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
J:=3*K-2*D;
CROSS(J,D) AND CROSS(K,D) AND K<30;