Made to improve the loading speed of the website, the specific function is to: 1. The basic information (name, date, abstract, link, address with pictures) of the latest n articles (reverse order) under each article category; 2. Basic information of all article categories (name, alias, link, description); 3. Basic information of all pages (name, alias, link, summary); 4. The basic information of the latest n products in the selected products (reverse order) (WooCommerce plug-in needs to be installed, name, date, summary, link, and picture address); The above four cases are saved as JSON files in the form of objects, which are used for loading the homepage, thereby improving the loading speed of the homepage. Note: The JSON file is stored in the root directory of the website. ???????????????????? 1. ?????????? n ??????????????????????????????? 2. ????????????????????????? 3. ??????????????????????? 4. ???????? n ????????????????WooCommerce????????????????????? ???????????????JSON???????????????????????? ??JSON??????????????