/// <summary>
/// 创建 Item 对象
/// </summary>
/// <param name="descriptor">物品描述</param>
/// <param name="quantity">物品数量</param>
public Item(ItemDescriptor descriptor, int quantity)
{
ItemDescriptor = descriptor;
Quantity = quantity;
}
/// <summary>
/// 创建 Item 对象
/// </summary>
/// <param name="descriptor">物品描述</param>
/// <param name="quantity">物品数量</param>
public Item( ItemDescriptor descriptor, int quantity )
{
ItemDescriptor = descriptor;
Quantity = quantity;
}