📄 c++ builder 程序设计实用教程 - 5_3_2 renamefile()函数 - 张晋 - 17xie.htm
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RenameFile()函数</DIV>
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<H3 style="MARGIN: 15pt 0cm 0pt"><A name=_Toc502915289></A><A
name=_Toc392382676></A><FONT size=3><FONT face="Times New Roman"><st1:chsdate
w:st="on" IsROCDate="False" IsLunarDate="False" Day="30" Month="12"
Year="1899"><SPAN style="mso-bookmark: _Toc392382676"><SPAN
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lang=EN-US>5.3.2</SPAN></SPAN></SPAN></st1:chsdate><SPAN
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</SPAN>RenameFile()</SPAN></SPAN></SPAN></FONT><SPAN
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style="mso-bookmark: _Toc502915289"><SPAN
style="FONT-FAMILY: 黑体; mso-ascii-font-family: 'Times New Roman'">函数</SPAN></SPAN></SPAN></FONT></H3>
<P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman">RenameFile()</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数的作用是更改指定文件的名称，但是在程序中要指定文件的原名和目的名，它的语法结构如下所示：</SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2>extern PACKAGE bool __fastcall RenameFile(const
AnsiString OldName, const AnsiString NewName);</FONT></SPAN></P>
<P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如执行下列代码：</SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2>void __fastcall TForm1::FormCreate(TObject
*Sender)</FONT></SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2>{</FONT></SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2>chdir("c:\\Windows\\temp");</FONT></SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN lang=EN-US><FONT
face="Times New Roman">//</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置系统的工作路径</SPAN></FONT></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman"
size=2>RenameFile("temp.txt","test.txt");</FONT></SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN lang=EN-US><FONT
face="Times New Roman">//</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">更改文件名</SPAN></FONT></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2>}</FONT></SPAN></P>
<P class=a style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman"
size=2>//-----------------------------------------------------------------------</FONT></SPAN></P>
<P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">程序说明：</SPAN></P>
<P class=MsoNormalIndent style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在程序运行的初期，窗体首先被加载，就会自动的激活窗体的</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">FormCreate()</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">事件，设置系统的工作路径为</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">c:\Windows\temp</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，然后通过语句</SPAN><SPAN
lang=EN-US><FONT
face="Times New Roman">RenameFile("temp.txt","test.txt");</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将当前系统工作目录下的</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">temp.txt</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">重新命名为</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">test.txt</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN></P>
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