当天股价踩在安全 -做出2个预警

编写要求：

请老师把当天股价脚踩在安全线上和当天Ａ８与Ａ９“金叉”时 -做出2个预警VAR1:=(2*CLOSE+HIGH+LOW+OPEN)/5;A1: (EMA(VAR1,3)+EMA(VAR1,6)+EMA(VAR1,12)+EMA(VAR1,24))/4;A2: EMA(A1,2);A3: EMA(A2,2);A4: EMA(A3,2);A5: EMA(A4,2);A6: EMA(A5,2);A7: EMA(A6,2);A8: EMA(VAR1,2.78)*1.028;A9: MA(OPEN,3.2)*1.028;安全线: EMA(CLOSE,55), CIRCLEDOT;

解答：

CROSS(C>EMA(CLOSE,55),0.5);