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如何用C#编写程序来验证xml文件的合法性!!!! 我想用C#编写一个程序来验证下的面的xml文件是否符合这个规则(其实是不符合的),但不知道程序该如何写呀!!!请各位高手帮帮小弟!!不胜感激!!!!! 有这么一个DTD: <!ELEMENT INVENTORY (BOOK)*> <!ELEMENT BOOK (TITLE,AUTHOR,BINDIN,PAGES,PRICEG)> <!ATTLIST BOOK InStock (yes|no) #REQUIRED> <!ELEMENT TITLE (#PCDATA |SUBTITLE)*> <!ELEMENT SUBTITLE (#PCDATA)> <!ELEMENT AUTHOR (#PCDATA)> <!ATTLIST AUTHOR Born CDATA #IMPLIED> <!ELEMENT BINDING (#PCDATA)> <!ELEMENT PAGES (#PCDATA)> <!ELEMENT PRICE (#PCDATA)> xml文件如下: <?xml version="1.0"?> <!--File Name:Inventory.xml--> <INVENTORY>  <BOOK>   <TITLE>The Adventures of Huckleberry Finn</TITLE>   <AUTHOR>Mark Twain</AUTHOR>   <BINDING>mass market paperback</BINDING>   <PAGES>298</PAGES>   <PRICE>$5.49</PRICE>    </BOOK>                 <BOOK>                                 <PRICE>$10.95</PRICE>   <TITLE>The Marble Faun</TITLE>   <AUTHOR>Nathaniel Hawthorne</AUTHOR>   <BINDING>trade paperback</BINDING>   <PAGES>473</PAGES>  </BOOK> </INVENTORY>    收藏   分享   顶(0)    关闭广告显示