“…Hema Fresh is a very typical example, and at the same time, multiple large supermarkets are also connected to some major platforms, such as Hungry Mai and Meituan Delivery, achieving a retail model from offline to online.In the catering industry, there have been platforms with functions such as review, ordering, and delivery, such as Dianping, word-of-mouth, etc. [2]In fields related to the travel industry, online ride hailing has also emerged, such as Didi Taxi and Yidao Car, and shared bicycles have also been achieved. The COVID-19 epidemic has also promoted the digitalization of the medical industry, such as the telecommuting industry, Tencent Conference, ZOOM, etc.…”