通达信回调介入（源码副图/选股贴图）

A:=EMA(C,8.3896)-EMA(C,17.5185);
 AA:=EMA(A,9.0503);
 AAA:=REF(EMA(C,3),3);
 XG:CROSS(C,AAA) AND COUNT(CROSS(C,AAA),6)=2 AND AAA>=REF(AAA,1)
 AND A>REF(A,1) AND AA>REF(AA,1),COLORRED;