RSV:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100; K:SMA(RSV,3,1),colorwhite; D:SMA(K,3,1),coloryellow; 买入:IF(CROSS(k,d) AND "cys"<-10 AND REF("asr",3)<10,50,0); 20; 50;
