1、0轴上方第一次金叉选股公式：
DIFF:=EMA(CLOSE,12) - EMA(CLOSE,26);
DEA := EMA(DIFF,9);
MACD := 2*(DIFF-DEA);
xg:cross(diff,dea) and dea＞-1.0 and dearef(CLOSE,1) and CLOSE＞=ma(c,60);
或：
DIF:=EMA(CLOSE,12)-EMA(CLOSE