主题：老师，我是新手，帮忙添加以下交易系统

cond1:a6<>0 and ref(a6,1)=0 and a5=0 ;
cond2:a5<>0 and ref(a5,1)=0 and a6=0;

ss:=1;//手数

if cond1 then begin
sell(holding>0,holding,marketr);
buyshort(holding=0,ss,marketr);
end
if cond2 then begin
sellshort(holding<0,holding,marketr);
buy(holding=0,1,marketr);
end