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  <div id=PPTP1 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0051.htm');" id=PPTL1>第九章<span
  style='mso-spacerun:yes'>&nbsp; </span>文 件</a></font></div>
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  <div id=PPTP3 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0059.htm');" id=PPTL3>9.1 文件的概念</a></font></div>
  <div id=PPTC3 class=CTxt style='display:none'><font size=2>
  <ul>
   <li>一、文件及其结构</li>
   <li><span style='mso-spacerun:yes'>&nbsp;</span>文件:存储在外部介质上数据的集合。</li>
   <li><span style='mso-spacerun:yes'>&nbsp;</span>要求操作系统中的文件系统能提供用户按名存取方式</li>
   <li><span style='mso-spacerun:yes'>&nbsp;</span>在操作系统中有两种文件:</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>字符流无结构文件和记录式有结构文件</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>磁盘文件是由数据记录组成。记录是计算机处理数据的基本单位,它由一组具有共同属性相互关联的数据项组成。</li>
  </ul>
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  style='mso-spacerun:yes'>&nbsp;</span></a></font></div>
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  style='mso-spacerun:yes'>&nbsp;</span></a></font></div>
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  <div id=PPTP7 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0052.htm');" id=PPTL7>9.2 文件系统控件</a></font></div>
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  <div id=PPTP15 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0056.htm');" id=PPTL15>&quot;(4)文件属性&quot;</a></font></div>
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  <ul>
   <li>	(4)文件属性:</li>
   <li>		<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>Archive:True,只显示文档文件;</li>
   <li>		<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>Normal:True,只显示正常标准文件;</li>
   <li>		<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>Hidden:True,只显示隐含文件;</li>
   <li>		<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>System:True,只显示系统文件。</li>
   <li>		<span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>ReadOnly:True,只显示只读文件。</li>
  </ul>
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  <div id=PPTP16 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0087.htm');" id=PPTL16>&quot;(6)List、ListCount
  和...&quot;</a></font></div>
  <div id=PPTC16 class=CTxt style='display:none'><font size=2>
  <ul>
   <li>	(6)List、ListCount 和 ListIndex 属性</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>文件列表框中的List、ListCount 和 ListIndex 属性与列表框(ListBox)控件的List、ListCount
       和 ListIndex 属性的含义和使用方法相同,在程序中对文件列表框中的所有文件进行操作,就有用到这些属性。</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>因此有:File1.FileName=File1.List(File1.ListIndex)</li>
   <br>
   <br>
   <li><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>将文件列表框(File1)中的所有文件名显示在窗体上:</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>For i = 0 To
       File1.ListCount - 1</li>
   <li><span style='mso-spacerun:yes'>&nbsp;</span>		 Print File1.List(i)</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>Next i</li>
  </ul>
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  <div id=PPTP17 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0057.htm');" id=PPTL17>&quot;2&quot;</a></font></div>
  <div id=PPTC17 class=CTxt style='display:none'><font size=2>
  <ul>
   <li>	2. 主要事件</li>
   <li><span style='mso-spacerun:yes'>&nbsp;</span>(1)PathChange事件</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>当路径被代码中FileName或Path属性的设置所改变时,此事件发生。</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>说明:可使用PathChange事件过程来响应FileListBox控件中路径的改变。</li>
   <br>
   <br>
   <li>(2)PatternChange事件</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>当文件的列表样式,如:&quot;*.*&quot;,被代码中对FileName或Path属性的设置所改变时,此事件发生。</li>
   <li><span
       style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
       </span>说明:可使用PatternChange事件过程来响应在FileListBox控件中样式的改变。</li>
  </ul>
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  <div id=PPTP18 class=PTxt><font size=2><a
  href="javascript:GoToSld('slide0088.htm');" id=PPTL18>&quot;(3) Click、DblClick事件&quot;</a></font></div>
  <div id=PPTC18 class=CTxt style='display:none'><font size=2>
  <ul>
   <li>(3) Click、DblClick事件:</li>
   <li>	例如:单击输出文件名。</li>
   <li>		Sub filFile_Click( )</li>
   <li>			MsgBox filFile.FileName</li>
   <li>		End Sub</li>
   <br>
   <br>
   <li>	例如:双击执行可执行程序</li>
   <li>	Sub File1_DblClick( )</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>Dim Fname As String</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>If<span
       style='mso-spacerun:yes'>&nbsp; </span>Right(file1.path,1)
       =&quot;\&quot;<span style='mso-spacerun:yes'>&nbsp; </span>Then</li>
   <li><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;
       </span>Fname=file1.path &amp; file1.filename</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>Else</li>
   <li><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;
       </span>Fname=file1.path &amp; &quot;\&quot; &amp; file1.filename</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>End If</li>
   <li><span style='mso-spacerun:yes'>&nbsp; </span>RetVal = Shell(Fname,
       1)<span style='mso-spacerun:yes'>&nbsp;&nbsp; </span>' 执行程序</li>
   <li>	End Sub</li>
  </ul>
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