N:=30;
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);
M3:=CONST(20);
风险区:M3,COLOR00DD00;
M5:=CONST(10);

QQ:M5,COLOR00DD00;

M4:=CONST(90);
安全区:M4,COLOR00DD00;

DRAWTEXT(CROSS(D,M4),M4,'风险区'),COLORMAGENTA;
DRAWTEXT(CROSS(D,M5),M5,'安全区'),COLORMAGENTA;