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--  『 XML基础』  (http://bbs.xml.org.cn/list.asp?boardid=1)
----  [求助]xml 基础问题请求帮助  (http://bbs.xml.org.cn/dispbbs.asp?boardid=1&rootid=&id=53024)

--  作者：qiaosilin
--  发布时间：9/24/2007 4:33:00 PM

--  [求助]xml 基础问题请求帮助
[size=2]请帮助我看看下面这段代码。。。检查格式良好，但是保存的时候却提示
该文件无效：元素‘CUSTOMER’与 DTD 基元素名称 'CUSTOMERS'不匹配。。。这是为什么？应该如何修改呢？请帮助我谢谢。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE CUSTOMER[
<!ELEMENT CUSTOMERS (CUSTOMER+)>
<!ELEMENT CUSTOMER (NAME, ADDRESS, PHONE)>
<!ELEMENT NAME (#PCDATA)>
<!ELEMENT ADDRESS (#PCDATA)>
<!ELEMENT PHONE (#PCDATA)>
<!ENTITY COGNOMEN "JACKIE">
<!ENTITY MONICKER "ARNOLD">
<!ENTITY FIRSTFLOOR "唐宁街15号1楼">
<!ENTITY SECONDFLOOR "唐宁街15号2楼">
<!ENTITY TELEPHONE "5715746">
<!ENTITY TELEPHONY "6865863">
]>

<CUSTOMERS>

<CUSTOMER>
<NAME>JACKIE</NAME>
<ADDRESS>&FIRSTFLOOR;</ADDRESS>
<PHONE>5715746</PHONE>
</CUSTOMER>
<CUSTOMER>
<NAME>ARNOLD</NAME>
<ADDRESS>&SECONDFLOOR;</ADDRESS>
<PHONE>6865863</PHONE>
</CUSTOMER>
</CUSTOMERS>[/size]

--  作者：luypmp
--  发布时间：9/24/2007 9:00:00 PM

--
楼主在DTD中把CUSTOMER定义为根元素，而xml中用CUSTOMERS作为root,当然就报错了

<?xml version="1.0"?>
<!DOCTYPE note [
  <!ELEMENT note (to,from,heading,body)>
  <!ELEMENT to      (#PCDATA)>
  <!ELEMENT from    (#PCDATA)>
  <!ELEMENT heading (#PCDATA)>
  <!ELEMENT body    (#PCDATA)>
]>
<note>
  <to>Tove</to>
  <from>Jani</from>
  <heading>Reminder</heading>
  <body>Don't forget me this weekend</body>
</note>
The DTD above is interpreted like this:

!DOCTYPE note defines that the root element of this document is note.
!ELEMENT note defines that the note element contains four elements: "to,from,heading,body".
!ELEMENT to defines the to element to be of the type "#PCDATA".
!ELEMENT from defines the from element to be of the type "#PCDATA".
!ELEMENT heading defines the heading element to be of the type "#PCDATA".
!ELEMENT body defines the body element to be of the type "#PCDATA".

从w3schools拿下来的，楼主可以参考参考
http://www.w3schools.com/dtd/dtd_intro.asp

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