以下是通达信看图说话左右投机之KDJ死叉后选（思路）
纯粹思路，勿做任何实际操做之依据。
CTJ01:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
KCTJ:=SMA(CTJ01,3,1);
DCTJ:=SMA(KCTJ,3,1);
JCTJ:=3*KCTJ-2*DCTJ;
JCC:=IF(CROSS(JCTJ,KCTJ),JCTJ,0);
SCC:=IF(CROSS(KCTJ,JCTJ),JCTJ,0);
KDJHX1:=DRAWLINE(JCC>0,JCC,SCC>0,SCC,0)COLORYELLOW;
KDJHX2:=DRAWLINE(SCC>0,SCC,JCC>0,JCC,0)COLORYELLOW;
KDJHX1=DRAWNULL AND KDJHX2=DRAWNULL AND SUM(C>O,5)>2;
