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);

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