N:=20; CC:='000300$CLOSE'; 沪深300:=(CC-REF(CC,N))/REF(CC,N)*100; CH:='399905$CLOSE'; 中证500:=(CH-REF(CH,N))/REF(CH,N)*100; 沪深:IF(沪深300>0 AND 沪深300>=中证500, 1, 0); 中证:IF(中证500>0 AND 中证500>=沪深300, 1, 0);