Following the spread of the mobile internet, a large number of businesses are doing business on their mobile phones, and today those who have come to emerging markets earlier are earning a fortune. Most of the businesses that do this are based on large electrician platforms, such as skycats, poachers, corporatists, etc., and one thing that needs to be noted is that the traffic is actually on those electrician platforms, rather than on their own. Unlike the city information applet, which belongs to the business, it exists independently and has ownership once it is opened. Premiums, membership cards, christmas events. Nor does it worry about the day when all the traffic that has come to them will be lost as the platform collapses. You've got a little program on the line, and it's like you've got a whole mall system. Characteristics of co-city information applet electrician 1, membership system 2, payment function 3, shopping vehicle/order/settlement function 4, custom classification 5...