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        23.3  在.NET中使用MSXML
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                        C#高级编程(第3版)
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                        23.3  在.NET中使用MSXML
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                    2006-10-13 14:41:00
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                        <div style='float:left;width:49%'>·<a href='100165634.htm'>22.4  小结</a></div><div style='float:right;width:49%'>·<a href='100165635.htm'>23.1  .NET支持的XML标准</a></div><div style='float:left;width:49%'>·<a href='100165636.htm'>23.2  System.Xml命名空间</a></div><div style='float:right;width:49%'>·<a href='100165638.htm'>23.4  使用System.Xml类</a></div><div style='float:left;width:49%'>·<a href='100165639.htm'>23.5  读写流格式的XML</a></div><div style='float:right;width:49%'>·<a href='100165640.htm'>23.5.1  使用 XmlTextReader类</a></div></div>
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                 <link href="css.css" rel="stylesheet" type="text/css" /><h3 style="MARGIN-TOP: 11.4pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FTEL: 11.4pt"><a ftel="_Toc507815196"><span lang="EN-US">23.3 &nbsp;</span></a><span style="FONT-FAMILY: 楷体_GB2312">在</span><span lang="EN-US">.NET</span><span style="FONT-FAMILY: 楷体_GB2312">中使用</span><span lang="EN-US">MSXML</span></h3>
<p class="MsoNormal"><a ftel="XML3"><span style="FONT-FAMILY: 宋体">如果用</span><span lang="EN-US">Microsoft</span></a><span style="FONT-FAMILY: 宋体">最新的分析器</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体">目前是</span><span lang="EN-US">MSXML 4.0)</span><span style="FONT-FAMILY: 宋体">开发大量的代码,会怎么样?如果要在</span><span lang="EN-US">.NET</span><span style="FONT-FAMILY: 宋体">中使用它们,您会从头开始编写吗?使用</span><span lang="EN-US">MSXML 4.0 DOM</span><span style="FONT-FAMILY: 宋体">对象模型会简单一些吗?您会立即转而使用</span><span lang="EN-US">.NET</span><span style="FONT-FAMILY: 宋体">吗?</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">当然不会。</span><span lang="EN-US">XML 4.0</span><span style="FONT-FAMILY: 宋体">、</span><span lang="EN-US">3.0</span><span style="FONT-FAMILY: 宋体">和</span><span lang="EN-US">2.0</span><span style="FONT-FAMILY: 宋体">可直接在应用程序中使用。在解决方案中添加一个</span><span lang="EN-US">MSXML4.DLL</span><span style="FONT-FAMILY: 宋体">引用,就可以开始编写代码。</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">下面几个示例将使用</span><span lang="EN-US">books.xml</span><span style="FONT-FAMILY: 宋体">作为数据源。</span><span lang="EN-US">books.xml</span><span style="FONT-FAMILY: 宋体">可以从</span><span lang="EN-US">Wrox</span><span style="FONT-FAMILY: 宋体">网站</span><span lang="EN-US">(http://www.wrox.com/)</span><span style="FONT-FAMILY: 宋体">上下载,它也包含在</span><span lang="EN-US">.NET SDK</span><span style="FONT-FAMILY: 宋体">的几个示例中。</span><span lang="EN-US">books.xml</span><span style="FONT-FAMILY: 宋体">文件是图像书店的书目清单,包含类型、作者姓名、价格和</span><span lang="EN-US">ISDN</span><span style="FONT-FAMILY: 宋体">号码等信息。本章中的所有代码示例也可以在</span><span lang="EN-US">Wrox</span><span style="FONT-FAMILY: 宋体">网站上得到。要运行这些示例,</span><span lang="EN-US">XML</span><span style="FONT-FAMILY: 宋体">数据文件必须在如下所示的路径结构中:</span></p>
<p class="a6" style="MARGIN-TOP: 8.15pt; MARGIN-LEFT: 21.45pt; MARGIN-RIGHT: 0cm; FTEL: 18.45pt"><span lang="EN-US">/XMLChapter/Sample1</span></p>
<p class="a6" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">/XMLChapter/Sample2</span></p>
<p class="a6" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">/XMLChapter/Sample3</span></p>
<p class="a6" style="MARGIN-TOP: 0cm; MARGIN-LEFT: 21.45pt; MARGIN-RIGHT: 0cm; FTEL: 18.45pt"><span lang="EN-US">...&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">可以调用所需要的目录,但相对位置是非常重要的。也可以修改示例,使之指向需要的地址。示例代码中的注释说明了应修改哪些代码行。</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">下面是</span><span lang="EN-US">books.xml</span><span style="FONT-FAMILY: 宋体">文件:</span></p>
<p class="2" style="MARGIN-TOP: 8.15pt; MARGIN-LEFT: 21.45pt; MARGIN-RIGHT: 0cm; FTEL: 18.45pt"><span lang="EN-US">&lt;?xml version='1.0'?&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&lt;!-- This file represents a fragment of a book store inventory database --&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&lt;bookstore&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp; &lt;book genre=&quot;autobiography&quot; publicationdate=&quot;1981&quot; ISBN=&quot;1-861003-23-0&quot;&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;title&gt;The Autobiography of Benjamin Franklin&lt;/title&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;author&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;first-name&gt;Benjamin&lt;/first-name&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;last-name&gt;Franklin&lt;/last-name&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/author&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;price&gt;8.99&lt;/price&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp; &lt;/book&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp; &lt;book genre=&quot;novel&quot; publicationdate=&quot;1967&quot; ISBN=&quot;0-201-63361-2&quot;&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;title&gt;The Confidence Man&lt;/title&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;author&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;first-name&gt;Herman&lt;/first-name&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;last-name&gt;Melville&lt;/last-name&gt;</span></p>
<p class="2" style="MARGIN-LEFT: 21.45pt; FTEL: 18.45pt"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/author&gt;</span></p>

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