买线:EMA(C,2),COLORRED,LINETHICK1;
卖线:EMA(SLOPE(C,21)*21+C,42),POINTDOT,COLORYELLOW;
买:=CROSS(买线,卖线);
卖:=CROSS(卖线,买线);
DRAWTEXT(买,LOW-0.1,'▲Ｂ'),COLORF00FF0,LINETHICK5;
DRAWTEXT(卖,HIGH+0.1,'▼Ｓ'),COLORWHITE,LINETHICK5;
STIC