With the poor social prospects and the constant promotion of environmental protection, the primitive form of barter has entered people's lives. A new term "changing customers: it refers to taking out idle goods that you don't use and exchanging them with others for useful things." To describe people. Therefore, the development of barter is in line with the social trend and cannot be said to be a retrogression of society. People pay more and more attention to low-carbon environmental protection, and barter will be accepted and joined by more people. More depends on the government's attitude and policy support in this regard. However, I believe that as long as environmental protection, it will develop.

With the rise of social networks and the popularity of smart phones, it provides a good development opportunity for replacing websites.

1) The popularity of smart phones makes it possible to release information instantly at your fingertips;

2) Face-to-face communication between cities to avoid credit risk;

3) In the case of rising prices and heavy living pressure, the cost can be saved by replacing idle items;

4) Many small and medium-sized enterprises have operational difficulties and need a platform to eliminate inventory and idle means of production;

5) Social networking has become a social trend, and it is feasible to know friends in the same community by changing things;

6) The concept of environmental protection is deeply rooted in people's hearts, and the exchange of idle goods is beneficial to environmental protection.