(Divided into two modules: local and online. Local is to read local books, which is poorly done. It is barely ok under 10kb, and the smart book guide has not been realized; online is basically ok, using the search engine of Sogou, and the catalog function has bugs, but it can be used, but catalog-reading-menu-catalog- Browse-menu-table of contents-browse-menu... After a few times, the chapters will not match the number; when browsing the page, click on the blank corner of the page to pop up the menu. This document includes the following attachments:)