TYP:=(HIGH + LOW + CLOSE)/3;CCI:=(TYP-MA(TYP,13))/(0.015*AVEDEV(TYP,13));抓大底:CROSS(CCI,-200) AND CCI>REF(CCI,1) AND MA(C,5)/L>=1.07 AND V<REF(V,1)*0.66 AND V<=MA(V,5);