effective.

scanning code to order food is a typical offer. An offer is an expression of intention to conclude a contract with others. The expression of intention shall meet the following requirements, with specific contents, indicating that the offeror is bound by the expression of intention after accepting the promise of the offeror. Invitation to offer. An invitation to offer is an expression of intention to expect others to make an offer to themselves. The sent price list, auction announcement, tender announcement, prospectus, commercial advertisement, etc. are invitations to offer. If the content of a commercial advertisement conforms to the provisions of the offer, it shall be regarded as an offer.

With the continuous progress and development of the society, scientific and technological means are constantly being introduced, and the catering industry is also seeking new breakthroughs and changes. With the upsurge of "internet plus", the concept of "internet plus" in catering is becoming more and more popular, and the mobile phone scanning QR code ordering system has become the future trend of the catering industry, with huge development space. Scanning the QR code of a restaurant with the "Sweep" tool or other QR code scanning tools provided by WeChat is the product of the trend of "internet plus Catering", which can effectively save labor costs for restaurants, improve the efficiency of ordering and dining, save customers' time and increase the turnover rate of restaurants.