通达信妖底部副图/选股，底类指标公式源码

	X_1:=EMA(EMA(EMA(CLOSE,9),9),9); X_2:=(X_1-REF(X_1,1))/REF(X_1,1)*100; X_3:=MA(X_2,8); X_4:=CROSS(X_2,X_3); X_5:=EMA(CLOSE,11)-EMA(CLOSE,24); X_6:=EMA(X_5,8); X_7:=(X_5-X_6)*2; X_8:=CROSS(X_5,X_6); 大妖底部:X_4 AND X_8;