MID : MA(CLOSE,20);
UPPER: MID + 2*STD(CLOSE,20);
LOWER: MID - 2*STD(CLOSE,20);
MA$1:MA(CLOSE, 5);
RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K2:=SMA(RSV,3,1);
D2:=SMA(K2,3,1);
J2:=3*K2-2*D2;
DING:=100;//超买，J大于100
DI:=0;//超卖，J小于0
DRAWICON(J2>=100,HIGH+HIGH*0.005,2);//J超买出现红色旗子
DRAWICON(J2<=0,LOW-LOW*0.003,1);//J超卖出现绿色旗子
B:=CROSS(J2,DI);//J上穿0，为买点
DRAWICON(B,LOW-LOW*0.01,7);
S:=CROSS(DING,J2);//J下破100，为卖点
DRAWICON(S,HIGH+HIGH*0.01,8);
