通达信kd波段顶底（源码附图）

RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
 K:SMA(RSV,3,1);
 D:SMA(K,3,1);
 
卖点准备: IF(CROSS(D,K) AND K>85,70,100),LINETHICK1,COLORLICYAN;
 买点准备: IF(CROSS(K,D) AND K<10,8,-0.6),LINETHICK1,COLOR00FF00;
 
买入持股:IF(K<=9,K,DRAWNULL)COLORRED,LINETHICK2;
 买入持股1:IF(K<=2,K,DRAWNULL)COLORWHITE,LINETHICK2;
 卖出空仓:IF(K>=85 AND D>85,K,DRAWNULL)COLORBLUE,LINETHICK3;
 卖出空仓1:IF(K>=85 AND D>90,K,DRAWNULL)COLORRED,LINETHICK2;