求高手幫忙編寫壹個通達信選股公式，條件如下:

EXP2:="EXPMA.EXP2";

AA:=CROSS(EXP1,EXP2);

TT:=BARSLAST(AA);

AA1:=C<O;

BB:=SAR(4,2,20);

XG:COUNT(AA1,TT)=1 AND AA1 AND "MACD.MACD">0 AND "KDJ.J"<80 AND C>BB;