模板:LinkCatIfExists/doc

This is a simple helper template, to be used in other templates. It displays a link to a category if that category exists; otherwise it just displays plaintext.

Optional display text may be added as a second parameter.

使用方法

{{LinkCatIfExists|CategoryName|OptionalDisplayText}}

Simple usage

{{LinkCatIfExists|CategoryName}}

Examples:

• {{LinkCatIfExists|A non-existent category}} → A non-existent category
• {{LinkCatIfExists|United States}} → United States

With optional display text

{{LinkCatIfExists|CategoryName|DisplayText}}

Examples:

• {{LinkCatIfExists|A non-existent category|Foo}} → Foo
• {{LinkCatIfExists|United States|USA}} → USA

另见

• Template:LinkCatIfExists2 — same as this, but with greying of non-existent categories
• Template:Category see also if exists
• Template:Cat in use — allows checking of whether category is populated
• Template:Link if exists