Help:CategoryTree

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CategoryTree（分類樹）是一個以樹的形式提供了wiki分類結構的動態視圖的擴充功能。 It uses Ajax to load parts of the tree on demand.

用法

CategoryTree擁有三種用法：

directly on the category pages,
as a "custom tag" (or "parser function") to show a category structure in-line on a wiki page,
and as a special page.

The CategoryTree extension adds [+] or [×] "展開" widgets to the subcategories listed on category pages, where [+] indicates the presence of further subcategories and [×] indicates the absence of them. If JavaScript is disabled, those widgets just do nothing.

Note to bot users: bots and scripts that parse the HTML of category pages can use the notree URL parameter to force the traditional output. However, HTML output is generally not stable, so it is recommended to change your script to use query.php or api.php to fetch category listings and such.

標籤<categorytree>

範例：

► Images

没有页面或子分类

<categorytree mode="pages" style="float:right; 
clear:right; 
margin-left:1ex; 
border:1px solid rgba(105, 105, 105, 0.2); 
padding:0.7ex; 
background-color: rgba(105, 105, 105, 0.08);">Images</categorytree>

The custom tag is called <categorytree>. For example, if you put <categorytree>Foo</categorytree> on a wiki page, it will show the contents of category Foo as a dynamic tree on that page (see example to the right). The tag accepts the following attributes, using an HTML-like syntax:

mode

determines which pages are shown in the tree. This may be overridden by the use of the namespaces option. Possible values:

categories: show subcategories only (configuration constant CT_MODE_CATEGORIES)
pages: show subcategories and pages, except images (configuration constant CT_MODE_PAGES), limited to 200 pages
all: show all pages, subcategories, images, etc (configuration constant CT_MODE_ALL)
parents: list parent categories instead of subcategories (configuration constant CT_MODE_PARENTS). This puts CategoryTree into "inverse" operation

depth

determines how many levels of the tree are shown initially. Default is 1, 0 means only the root node. The maximum value depends on the mode specified, and on the $wgCategoryTreeMaxDepth option.

hideroot

set this to "on" to hide the "root" node of the tree, i.e. the mention of category Foo from the example.

hideprefix

determines when the namespace prefix should be hidden from entries in the tree. Possible values are:

always: always hide the prefix. Should be used only if all pages come from the same namespace (configuration constant CT_MODE_CT_HIDEPREFIX_ALWAYS)
never: never hide the namespace prefix, not even for categories (configuration constant CT_MODE_CT_HIDEPREFIX_NEVER)
auto: hide the namespace of categories, if only categories are shown, as with mode="categories" (configuration constant CT_MODE_CT_HIDEPREFIX_AUTO)
categories: always hide the namespace of categories, but show all other prefixes (configuration constant CT_MODE_CT_HIDEPREFIX_CATEGORIES); this is the default behavior

showcount: set this to "on" to show the number of entries in subcategories, i.e. showcount="on". This is disabled by default for category trees inlined on pages, but enabled by default in category listings and on Special:CategoryTree.
namespaces: a list of namespaces from which pages should be shown in the tree. The entries in the list must be namespace names, separated by spaces. The main namespaces can be represented by "-" or "0". This overrides the mode option.
class, style, id, etc.: The <categorytree> tag supports all standard HTML attributes for block elements.

解析器函數{{#categorytree}}

You can also use parser function syntax to place a category tree on a page. This works just like the <categorytree> tag, using a different syntax, e.g. {{#categorytree:Foo}}; options can be specified using the syntax for named template parameters, e.g. {{#categorytree:Foo|hideroot|mode=pages}}.

Using the parser function syntax has the advantage that it allows you to use magic words, templates, and template parameters when specifying the category to show. Some examples:

Using a magic variable to show "this pages" category tree (may be useful on category description pages): {{#categorytree:{{PAGENAME}}}}.
Using a template to specify the category: {{#categorytree:{{root category}}}} - the name of the root category would be defined by the contents of Template:Root_category.
Using a template parameter to specify the category, when using CategoryTree inside a template: {{#categorytree:{{{1}}}}} in Template:Baz can be called using {{Baz|Foo}}

Special:CategoryTree（特殊:分類樹）頁面

The special page is called Special:CategoryTree; there you can enter the name of a category and then browse its content.

參見

Help:DynamicPageList#Use other tools for common DPL uses
範例
Extension page on MediaWiki：更多有關擴充功能CategoryTree的資訊

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社区中心

Help:CategoryTree

目录

用法

標籤<categorytree>

解析器函數{{#categorytree}}

Special:CategoryTree（特殊:分類樹）頁面

參見

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