M1:=MA(C,30);
首次上穿1:=O =M1 AND C
首次上穿2:=O =M1 AND C M1 AND C O AND REF(C,1) REF(M1,1);
首次上穿:=首次上穿1 OR 首次上穿2;
三天有效:=EXIST(首次上穿,3);
连续三日:=C M1 AND REF(C,1) REF(M1,1) AND REF(C,2) REF(M1,2);
输出1:三天有效 AND 连续三日;