根据这个txt文件来进行DTD与XML编写

author:王维
title:鹿柴
content:空山不见人,但闻人语声。返景入深林,复照青苔上。

 

单独使用XML来实现(poem.xml)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE poem [
<!ELEMENT poem (author, title, content)>
<!ELEMENT author (#PCDATA)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT content (#PCDATA)>
]>
<poem>
	<author>王维</author>
	<title>鹿柴</title>
	<content>空山不见人,但闻人语声。返景入深林,复照青苔上。</content>
</poem>

 

使用DTD与XML文件编写(poem2.dtd)

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT poem (author, title, content)>
<!ELEMENT author (#PCDATA)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT content (#PCDATA)>

 

使用DTD与XML文件编写(poem2.xml)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE poem SYSTEM "poem2.dtd">
<poem>
	<author>王维</author>
	<title>鹿柴</title>
	<content>空山不见人,但闻人语声。返景入深林,复照青苔上。</content>
</poem>

 

使用DTD与XML文件编写(poem3.dtd)

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT poems (poem+)>
<!ELEMENT poem (author, title, content)>
<!ELEMENT author (#PCDATA)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT content (#PCDATA)>

 

使用DTD与XML文件编写(poem3.xml)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE poems SYSTEM "poem3.dtd">
<poems>
	<poem>
		<author>王维</author>
		<title>鹿柴</title>
		<content>空山不见人,但闻人语声。返景入深林,复照青苔上。</content>
	</poem>
	<poem>
		<author>王维2</author>
		<title>鹿柴</title>
		<content>空山不见人,但闻人语声。返景入深林,复照青苔上。</content>
	</poem>
</poems>

 

使用DTD与XML文件编写(poem4.dtd)

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT poems (poem+)>
<!ELEMENT poem (author, title, content)>
<!ELEMENT author (#PCDATA)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT content (#PCDATA)>
<!ATTLIST author gender CDATA #FIXED "男">

 

使用DTD与XML文件编写(poem4.xml)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE poems SYSTEM "poem4.dtd">
<poems>
	<poem>
		<author gender="男">王维</author>
		<title>鹿柴</title>
		<content>空山不见人,但闻人语声。返景入深林,复照青苔上。</content>
	</poem>
</poems>