选股公式怎么写？

第一天阴线下跌3%为T1，第二天十字星，收盘在开盘正负1%内为T2，第三天阳线上涨3%为T3；

T1:= (REF(CLOSE,3)-REF(CLOSE,2))/REF(CLOSE,3)>0.03 AND REF(CLOSE,3)>REF(CLOSE,2) AND REF(O,2)>REF(CLOSE,2);

T21:= (REF(O,1)-REF(CLOSE,1))/REF(O,1)<0.01 AND REF(O,1)>REF(CLOSE,1);

T22:= (REF(CLOSE,1)-REF(O,1))/REF(CLOSE,1)<0.01 AND REF(O,1)<REF(CLOSE,1);

T2:=T21 OR T22;

T3:=(CLOSE-REF(CLOSE,1))/REF(CLOSE,1)>0.03 AND O<C;

T:T1 AND T2 AND T3;