主题：求助，编写，拜谢~~

INPUT:n(20,1,120,1),p(1,1,100,1);//参数

ma20:ma(c,N);
buycond:c>=ma20*(1+p/100);//开仓条件
sellcond:c<=ma20*(1-p/100);//平仓条件

if buycond then begin
sellshort(holding<0,1,marketr);
buy(holding=0,1,market);
end
if sellcond then  begin
sell(holding>0,holding,market);
 buyshort(holding=0,1,market);
 end