主题：请老师帮忙编下指标

 ma20:ma(c,20);

ktcd:cross(c,ma20) and c-ma20>=1*MINDIFF;//收盘价上穿20日均线，且大于均线至少一个最小变动价位
kkcd:cross(ma20,c) and ma20-c>=1*MINDIFF;

buy(ktcd and holding=0,1,market);
buyshort(kkcd and holding=0,1,market);

if c<ref(l,ENTERBARS+1) then sell(1,holding,market);
if c>ref(h,ENTERBARS+1) then sellshort(1,holding,market);