public static int SortAmount(Tovar x, Tovar y)
{
int ret = x.amount.CompareTo(y.amount);
if (ret != 0)
{
return(ret);
}
return(x.amount.CompareTo(y.amount));
}
public static int SortDate(Tovar x, Tovar y)
{
int ret = x.name.CompareTo(y.date);
if (ret != 0)
{
return(ret);
}
return(x.date.CompareTo(y.date));
}
public static int SortPrice(Tovar x, Tovar y)
{
int ret = x.price.CompareTo(y.price);
if (ret != 0)
{
return(ret);
}
return(x.price.CompareTo(y.price));
}
