编写条件：
编写方法：
网友求助：
在这个公式的基础上,把时间改一下.设K20天D31天J3天
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;
xg:d<50 AND crOSS(j,REF(j,2));
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;
xg:d<50 AND crOSS(j,REF(j,2));
解答如下：
RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K:=SMA(RSV,20,1);
D:=SMA(K,31,1);
J:=3*K-2*D;
xg:d<50 AND CROSS(j,REF(j,2));
K:=SMA(RSV,20,1);
D:=SMA(K,31,1);
J:=3*K-2*D;
xg:d<50 AND CROSS(j,REF(j,2));
