AA:=LLV(L,34); XD:=SMA(Abs(L-REF(L,1)),34,1); CD:=SMA(MAX(L-REF(L,1),0),34,2); 收盘买:=-(EMA(IF(L<=AA,XD/CD,-3),9)); XG:收盘买<0 AND 收盘买>REF(收盘买,1) AND REF(EVERY(收盘买