主:=EMA((CLOSE-MA(CLOSE,7))/MA(CLOSE,7)*480,2)*5,LINETHICK1,COLOR0000FF; 散:=EMA((CLOSE-MA(CLOSE,11))/MA(CLOSE,11)*480,7)*5,LINETHICK1,COLORGREEN; 铁底条件:=CROSS(主,散) AND 主<-10; 铁底:铁底条件;