写完这个标题，我突然觉得有些茫然——究竟是谁应怎么办？其实，这个标题的完整写法应该是《用户丢失了发票厂家或商家应该怎么办》。 　　应该承认，除了知假买假的王海之外，消费者购买商品谁都不希望它是有问题的或是有毛病的。但实际情况是：任何一种产品，都不可能达到十 After writing this title, I suddenly felt a bit dazed - exactly what should be how to do? In fact, the title of the complete wording should be “users lost invoice manufacturers or businesses should be how to do.” It should be admitted that, in addition to know the fake Wang Hai, consumers who buy goods do not want it to be problematic or faulty. But the actual situation is: no one product, can not reach ten