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With the development of the Internet rapidly, cheap and convenient online shopping has become a preferred choice. However, personal information cannot be guaranteed when you receive expresses. The design uses the two-dimensional code to read information. Couriers can call or text to the recipient as long as they scan the two-dimensional code. Meanwhile, the recipient can also use the two-dimensional code to sign for their delivery. If the two-dimensional code is scanned，it will fail. The information can be not disclosed, and you can shopping online safely.