WSTMall is a multi-merchant O2O open source system developed based on thinkphp3.2.2. It is a system that can help enterprises and individuals quickly build an O2O (online to offline) service system, and comprehensively assist the rapid growth and development of entrepreneurial teams. Business realization! WSTMall1.7.4 update log: 2016-09-061. The quantity of products can be modified in the shopping cart on the right 2. Limit the image upload type 3. Fix store sorting and product sorting bugs 4. Fix the problem that the region cannot be added when the Chinese initials of the region fail to be generated bug5. Third-party login download avatar 6. Fix the bug of advertising management search 7. When the backend administrator logs in and visits the login page every day, a scheduled task is triggered 8. Stores that are on rest should not be able to place orders successfully 9. Merchant and user backend products are not available The default picture is also used instead of 10. The buyer-to-be-evaluated list is actually still there after the evaluation, and an independent completed order list is added. 11. System code optimization