The Keke Witkey system KPPW is an open source system project independently developed by the Wuhan Keke team. It is mainly used to build an online service trading platform in the Witkey mode. The KPPW website program is developed using PHP+MYSQL. The program framework adopts the object-oriented MVC design pattern. The WEB front-end uses the most popular HTML5+CSS3 development framework Bootstrap to support responsive web design. KPPW2.7UTF8 update log of KKE Witkey system: 2016-02-02>>Fix 1. Fix the style error that appears when clicking again after closing the shop 2. Fix the BUG that the Witkey personal center cannot close the shop 3. Fix the hiring task being blocked by Witkey BUG 4 of not receiving the site message after rejection. Fixed BUG 5 of cases not displaying bargaining and lucky bag tasks. Fixed BUG 6 of unrealistic amount for purchasing value-added services when publishing services. Fixed BUG 7 of refund for bargaining tasks without hosting bounties. Fixed bargaining Task process BUG8. Fixed the issue of being unable to receive a refund when the bargaining task hosting bounty is refunded. BUG9. Fixed the issue of being unable to edit emoticons when editing products in the personal center. BUG10. Fixed the issue of I am a Witkey and I am an employer being unable to click on the mobile version. BUG added 1. Add a button for employers to view orders in the personal center 2. Add a case filtering function 3. Optimize the payment function 4. Add a new set of templates 5. Newly revised personal center 6. Strengthen the backend restrictions on submissions 7. Optimize Store style