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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'> </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>
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<ul>
<li>一、文件及其结构</li>
<li><span style='mso-spacerun:yes'> </span>文件:存储在外部介质上数据的集合。</li>
<li><span style='mso-spacerun:yes'> </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'> </span>在操作系统中有两种文件:</li>
<li><span
style='mso-spacerun:yes'>
</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'> </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>
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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=PPTP8 class=PTxt><font size=2><a
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<div id=PPTP11 class=PTxt><font size=2><a
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<div id=PPTP14 class=PTxt><font size=2><a
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<div id=PPTP15 class=PTxt><font size=2><a
href="javascript:GoToSld('slide0056.htm');" id=PPTL15>"(4)文件属性"</a></font></div>
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<ul>
<li> (4)文件属性:</li>
<li> <span style='mso-spacerun:yes'> </span>Archive:True,只显示文档文件;</li>
<li> <span style='mso-spacerun:yes'> </span>Normal:True,只显示正常标准文件;</li>
<li> <span style='mso-spacerun:yes'> </span>Hidden:True,只显示隐含文件;</li>
<li> <span style='mso-spacerun:yes'> </span>System:True,只显示系统文件。</li>
<li> <span style='mso-spacerun:yes'> </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>"(6)List、ListCount
和..."</a></font></div>
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<ul>
<li> (6)List、ListCount 和 ListIndex 属性</li>
<li><span
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</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'>
</span>因此有:File1.FileName=File1.List(File1.ListIndex)</li>
<br>
<br>
<li><span style='mso-spacerun:yes'> </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'> </span>For i = 0 To
File1.ListCount - 1</li>
<li><span style='mso-spacerun:yes'> </span> Print File1.List(i)</li>
<li><span style='mso-spacerun:yes'> </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>"2"</a></font></div>
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<ul>
<li> 2. 主要事件</li>
<li><span style='mso-spacerun:yes'> </span>(1)PathChange事件</li>
<li><span
style='mso-spacerun:yes'>
</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
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</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'>
</span>当文件的列表样式,如:"*.*",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'>
</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>"(3) Click、DblClick事件"</a></font></div>
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<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'> </span>Dim Fname As String</li>
<li><span style='mso-spacerun:yes'> </span>If<span
style='mso-spacerun:yes'> </span>Right(file1.path,1)
="\"<span style='mso-spacerun:yes'> </span>Then</li>
<li><span style='mso-spacerun:yes'>
</span>Fname=file1.path & file1.filename</li>
<li><span style='mso-spacerun:yes'> </span>Else</li>
<li><span style='mso-spacerun:yes'>
</span>Fname=file1.path & "\" & file1.filename</li>
<li><span style='mso-spacerun:yes'> </span>End If</li>
<li><span style='mso-spacerun:yes'> </span>RetVal = Shell(Fname,
1)<span style='mso-spacerun:yes'> </span>' 执行程序</li>
<li> End Sub</li>
</ul>
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<div id=PPTP19 class=PTxt><font size=2><a
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