Cloud code is actually a two-dimensional code independently developed by Guangzhou Codecom Company, which can solve the problems of security traceability, channel channeling prevention, accurate communication, mobile shopping and mobile promotion. Codecom is a technical service provider of o2o marketing solution system. Through the application of mobile phone combined with QR code technology, we can solve the marketing problems of enterprises and provide one-stop marketing management solutions for enterprises. I hope I can help those netizens who still don't understand.