subject_27614.htm

一些关于vc的问答

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序号：27614 发表者：冬瓜猫 发表日期：2003-01-13 23:07:28
<br>主题：VC中有没有判断某一个文件或目录是否存在的函数？
<br>内容：你VB中有FileExists等，VC中有没有？
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<font color=red>答案被接受</font><br>回复者：tjhe 回复日期：2003-01-13 23:15:07
<br>内容：_access(...)函数，即<BR>int _access( <BR>&nbsp;&nbsp; const char *path, <BR>&nbsp;&nbsp; int mode <BR>);<BR><BR>如：<BR>&nbsp;&nbsp; if( (_access( "ACCESS.C", 0 )) != -1 )<BR>&nbsp;&nbsp; {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf( "File ACCESS.C exists\n" );<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* Check for write permission */<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if( (_access( "ACCESS.C", 2 )) != -1 )<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf( "File ACCESS.C has write permission\n" );<BR>&nbsp;&nbsp; }<BR><BR>另外可使用CFileFind类的FindFile成员函数及IsDirectory( )或<BR>CFile类的静态成员函数GetStatus(...)<BR><BR><BR>2003-1-13 23:23:09