w3pop.com :: 网络学院 :: DTD :: DTD - 实体
Entities are variables used to define shortcuts to common text.
实体是用于定义普通文本快捷方式的变量。
- Entity references are references to entities.
实体参数就是反映实体特征的参数。
- Entities can be declared internal, or external
实体在内部和外部都可以被声明。
Syntax: <!ENTITY entity-name "entity-value"> <!ENTITY writer "Donald Duck."> XML example: <author>&writer;©right;</author> |
Syntax: <!ENTITY entity-name SYSTEM "URI/URL"> <!ENTITY writer XML example: <author>&writer;©right;</author> |
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