编写要求：
股票网解答：
网友求助：
请编MACD指标DIFF与DEA在0轴上方金叉的选股公式
解答如下：
DIFF:=EMA(CLOSE,12) - EMA(CLOSE,26);
DEA:=EMA(DIFF,9);
SELECT:DIFF>0 AND DEA>0 AND CROSS(DIFF,DEA);
DEA:=EMA(DIFF,9);
SELECT:DIFF>0 AND DEA>0 AND CROSS(DIFF,DEA);
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