问题
How can I display a category list and the articles that belong to them, as a tree structure, displaying only the names of the articles and categories?
回答1:
In the Joomla backend, go to the Module Manager and open the module called "Articles Category". In there you can edit the parameter to suit your needs and this will display a tree structure of categories and the articles that belong to them.
If you want to display this module inside an article then give the module a custom position by typing one in, instead of selecting one. The in the article, add the following code:
{loadposition xxx}
Change xxx to the name if your custom position.
来源：https://stackoverflow.com/questions/13435872/how-can-i-display-multiple-category-lists-in-one-article-in-joomla