畫個水平線

n:=9;
p1:=3;
p2:=3;

RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
K:=SMA(RSV,P1,1);
D:=SMA(K,P2,1);
J:=3*K-2*D;

drawsl(islastbar,k,0,todaybar,1);