通达信公式编写：30日内突破均线并触及20日均线

C1:=REF(CLOSE,1)>REF(MA(CLOSE,10),1) AND CROSS(CLOSE,MA(CLOSE,10)); C2:=REF(CLOSE,1)>REF(MA(CLOSE,20),1) AND CROSS(CLOSE,MA(CLOSE,20)); C3:=LOW<=MA(CLOSE,20); FILTER:=C1 OR C2 OR C3;