subject_15019.htm

一些关于vc的问答

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序号：15019 发表者：萤火虫 发表日期：2002-09-13 15:45:26
<br>主题：请问如何在CString里面过滤掉某特定的中文字符呢？
<br>内容：比如我得到了一个路径，里面是中文的文件名，但是我想把中文文件名去掉，得到路径，怎么过滤掉那个中文文件名？我用_T，什么都不行啊，只能过滤掉英文的扩展名
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回复者：小戟 回复日期：2002-09-13 15:57:08
<br>内容：要是知道中文文件名，好办；<BR>不知道就匹配“\\”
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<font color=red>答案被接受</font><br>回复者：TopLevel 回复日期：2002-09-13 16:10:16
<br>内容：CString str = TEXT(" C:\\My Folder\\我的可执行文件.exe" );<BR>str = str.Left( str.ReverseFind( '\\' ) + 1 );
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回复者：萤火虫 回复日期：2002-09-13 16:30:03
<br>内容：再比如：<BR>str="生产商：某某地方";<BR>要过滤掉="生产商"，取得"某某地方"怎么做呢？
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回复者：小戟 回复日期：2002-09-13 16:45:13
<br>内容：你还是看看CString&nbsp;&nbsp;de&nbsp;&nbsp;函数。
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回复者：萤火虫 回复日期：2002-09-13 20:47:59
<br>内容：关键的问题是：我用TrimLeft（）函数，剪裁不了中文，只能剪裁英文阿
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回复者：毛新年 回复日期：2002-09-16 10:10:01
<br>内容：如果字符串不是Unicode,最安全最保险的操作是先将字符串转换成Unicode.对Unicode进行操作，在还原<BR><BR>For Example<BR>char *pszFilePath = "C:\\Limaowell\\我的文件.txt"<BR><BR>WCHAR szWFilePath[MAX_PATH];<BR>char szFilePath[MAX_PATH];<BR>MultiByteToWideChar(CP_ACP,0,pszFilePath,strlen(pszFilePath).szWFilePath,(MAX_PATH));<BR>WCHAR *pch = wcsrchr(szWFilePath,l'\\');<BR>if(pch != NULL)<BR>&nbsp;&nbsp;*pch = 0;<BR><BR>WideCharToMultiBute(CP_ACP,0,szWFilePath,wcslen(szWFilePath),szFilePath,(MAX_PATH));<BR>这样得到的szFilePath为文件路径<BR><BR>
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回复者：Aikoc 回复日期：2002-09-16 10:51:22
<br>内容：_splitpath, _wsplitpath<BR>Break a path name into components.<BR><BR>void _splitpath( const char *path, char *drive, char *dir, char *fname, char *ext );<BR><BR>void _wsplitpath( const wchar_t *path, wchar_t *drive, wchar_t *dir, wchar_t *fname, wchar_t *ext );<BR><BR>Routine Required Header Compatibility <BR>_splitpath &lt;stdlib.h&gt; Win 95, Win NT <BR>_wsplitpath &lt;stdlib.h&gt; or &lt;wchar.h&gt; Win 95, Win NT <BR><BR><BR>For additional compatibility information, see Compatibility in the Introduction.<BR><BR>Libraries<BR><BR>LIBC.LIB Single thread static library, retail version <BR>LIBCMT.LIB Multithread static library, retail version <BR>MSVCRT.LIB Import library for MSVCRT.DLL, retail version <BR><BR><BR>Return Value<BR><BR>None<BR><BR>Parameters<BR><BR>path<BR><BR>Full path<BR><BR>drive<BR><BR>Optional drive letter, followed by a colon (:)<BR><BR>dir<BR><BR>Optional directory path, including trailing slash. Forward slashes ( / ), backslashes ( \ ), or both may be used.<BR><BR>fname<BR><BR>Base filename (no extension)<BR><BR>ext<BR><BR>Optional filename extension, including leading period (.)<BR><BR>Remarks<BR><BR>The _splitpath function breaks a path into its four components. _splitpath automatically handles multibyte-character string arguments as appropriate, recognizing multibyte-character sequences according to the multibyte code page currently in use. _wsplitpath is a wide-character version of _splitpath; the arguments to _wsplitpath are wide-character strings. These functions behave identically otherwise.<BR><BR>Generic-Text Routine Mappings<BR><BR>TCHAR.H Routine&nbsp;&nbsp;_UNICODE & _MBCS Not Defined _MBCS Defined _UNICODE Defined <BR>_tsplitpath _splitpath _splitpath _wsplitpath <BR><BR><BR>Each argument is stored in a buffer; the manifest constants _MAX_DRIVE, _MAX_DIR, _MAX_FNAME, and _MAX_EXT (defined in STDLIB.H) specify the maximum size necessary for each buffer. The other arguments point to buffers used to store the path elements. After a call to _splitpath is executed, these arguments contain empty strings for components not found in path. You can pass a NULL pointer to _splitpath for any component you don’t need.<BR><BR>Example<BR><BR>/* MAKEPATH.C */<BR><BR>#include &lt;stdlib.h&gt;<BR>#include &lt;stdio.h&gt;<BR><BR>void main( void )<BR>{<BR>&nbsp;&nbsp; char path_buffer[_MAX_PATH];<BR>&nbsp;&nbsp; char drive[_MAX_DRIVE];<BR>&nbsp;&nbsp; char dir[_MAX_DIR];<BR>&nbsp;&nbsp; char fname[_MAX_FNAME];<BR>&nbsp;&nbsp; char ext[_MAX_EXT];<BR><BR>&nbsp;&nbsp; _makepath( path_buffer, "c", "\\sample\\crt\\", "makepath", "c" );<BR>&nbsp;&nbsp; printf( "Path created with _makepath: %s\n\n", path_buffer );<BR>&nbsp;&nbsp; _splitpath( path_buffer, drive, dir, fname, ext );<BR>&nbsp;&nbsp; printf( "Path extracted with _splitpath:\n" );<BR>&nbsp;&nbsp; printf( "&nbsp;&nbsp;Drive: %s\n", drive );<BR>&nbsp;&nbsp; printf( "&nbsp;&nbsp;Dir: %s\n", dir );<BR>&nbsp;&nbsp; printf( "&nbsp;&nbsp;Filename: %s\n", fname );<BR>&nbsp;&nbsp; printf( "&nbsp;&nbsp;Ext: %s\n", ext );<BR>}<BR><BR><BR>Output<BR><BR>Path created with _makepath: c:\sample\crt\makepath.c<BR><BR>Path extracted with _splitpath:<BR>&nbsp;&nbsp;Drive: c:<BR>&nbsp;&nbsp;Dir: \sample\crt\<BR>&nbsp;&nbsp;Filename: makepath<BR>&nbsp;&nbsp;Ext: .c<BR><BR><BR>File Handling Routines<BR><BR>See Also&nbsp;&nbsp; _fullpath, _getmbcp, _makepath, _setmbcp<BR><BR><BR>--------------------------------------------------------------------------------<BR>Send feedback to MSDN.Look here for MSDN Online resources. 
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