The uni version of mescroll is a component specially used for pull-down refresh and pull-up loading of uni-app. It integrates functions such as automatic paging processing, automatic control of no data, empty layout prompts, and return to the top button. This chapter will teach you the mescroll-body component from scratch, because it supports native components and has good performance, making up for the shortcomings of mescroll-uni. In addition, this chapter also implements functions such as how to handle multiple mescroll components on the same page when switching tabs, automatically handle paging, automatically control no data, and empty layout prompts.