主题：请问我怎么开不了仓

ma5:ma(close,5);
ma20:ma(close,20);
kd:=cross(ma5,ma20);
kk:=cross(ma20,ma5);
pdd:holding>0 and close-ENTERPRICE>=10,NOAXIS;
pdk:holding<0 and ENTERPRICE-close>=10,NOAXIS;

sell(kk and holding<>0,holding,market);
sellshort(kd and holding<>0,holding,market);
buy((kd and holding=0),1,market);
buyshort(kk and holding=0,1,market);

buy(pdk,1,market);
buyshort(pdd,1,market);

xx:holding,NOAXIS;