Template:LinkCatIfExists
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