日线随机性太大，周线更容易把握，切记！
下图为大盘周线

A1:=REF(EMA(C,3),1)>REF(EMA(C,3),2) AND EMA(C,3) A2:=REF(EMA(C,3),1)REF(EMA(C,3),1);
EXITLONG:A1;
ENTERLONG:A2;