通达信明确波段买卖（源码主图贴图）

A8:=100*EMA(EMA(A7,6),6)/EMA(EMA(ABS(A7),6),6);
买:=LLV(A8,2)=LLV(A8,7) AND COUNT(A8 0,2) AND CROSS(A8,MA(A8,2));
DRAWTEXT(FILTER(买=1,7),LOW-0.15,'↖买进'),COLORYELLOW;
STICKLINE(买,OPEN,CLOSE,2.5,0),COLORYELLOW;
VARC:=SMA(MAX(C-REF(C,1),0),6,1)/SMA(ABS(C-REF(C,1)),6,1)*100;
DRAWTEXT(CROSS(84,VARC),H*1.01,'---卖出'),COLORYELLOW ;