动向流:(ma(close,3)-ref(ma(close,3),18))/ref(ma(close,3),18);polyline(1,ma(动向流,2));polyline(1,ma(动向流,3));polyline(1,ma(动向流,4));polyline(1,ma(动向流,5));polyline(1,ma(动向流,6));polyline(1,ma(动向流,7));polyline(1,ma(动向流,8));polyline(1,ma(动向流,9));polyline(1,ma(动向流,10));polyline(1,ma(动向流,11));polyline(1,ma(动向流,12));polyline(1,ma(动向流,13));polyline(1,ma(动向流,14));polyline(1,ma(动向流,15));polyline(1,ma(动向流,16));polyline(1,ma(动向流,17));polyline(1,ma(动向流,18));polyline(1,ma(动向流,19));polyline(1,ma(动向流,20));polyline(1,ma