将下边的公式计算加个条件

编写条件：请教师将下边的公式计算加个条件：　仅有AAA上　在超过0时，才出現红箭头符号提醒！

DIF1:=EMA(DCLOSE,12)-EMA(DCLOSE,26);

DEA1:=EMA(DIF1,9);

{柱状线}

AAA1:=(DIF1-DEA1)*2*60;

AAA上:IF(AAA1>REF(AAA1,1),AAA1,DRAWNULL),

STICK,COLORRED,LINETHICK1;

AAA下:IF(AAA1

买入线:15;

房子:AAA1-REF(AAA1,1),COLORRED;

DRAWICON(CROSS(房子,买入线),买入线,1);

编写方式：DIF1:=EMA(DCLOSE,12)-EMA(DCLOSE,26);

DEA1:=EMA(DIF1,9);

{柱状线}

AAA1:=(DIF1-DEA1)*2*60;

AAA上:IF(AAA1>REF(AAA1,1),AAA1,DRAWNULL),

STICK,COLORRED,LINETHICK1;

AAA下:IF(AAA1<REF(AAA1,1),AAA1,DRAWNULL),STICK,COLORYELLOW,LINETHICK1;

买入线:15;

房子:AAA1-REF(AAA1,1),COLORRED;

DRAWICON(CROSS(房子,买入线) AND AAA上>=0,买入线,1);