printf("Directory exists\n"); } else { printf("Directory does not exist\n"); } return 0; } ``` 在上面的代码中,调用access函数来检查目录是否可以被访问,其中F_OK参数用于检查文件是否存在。如果返回值不为-1,则表示目录存在,输出"Directory exists";否则输出"Directory does not exist"。 总的来说...
1、判断文件夹是否存在 //spath：文件夹路径名 using System.IO; if (Directory.Exists(spath...
HANDLE hFind = FindFirstFile(strPath.c_str(), &FindFileData); if ((hFind != INVALID_HANDLE_VALUE) && (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { bValue = TRUE; } FindClose(hFind); return bValue; } 方法四:使用boost库中filesystem类库的exists函数 #include <boost/filesystem/opera...
When used with files, the _access function determines whether the specified file exists and can be accessedasspecified by the value of mode. When used with directories, _access determines only whether the specified directory exists;inWindows NT, all directories have read and write access. mode Va...
full_path=system_complete( path(strPath, native ) );//判断各级子目录是否存在,不存在则需要创建if( !exists( full_path ) ) {boolbRet =create_directories(full_path);if(false==bRet) {return-1; } } strFilePath=full_path.native_directory_string();return0; ...
CreateDirectory Method Delete Method Exists Method GetCreationTime Method GetCreationTimeUtc Method GetCurrentDirectory Method GetDirectories Method GetDirectoryRoot Method GetFiles Method GetFileSystemEntries Method GetLastAccessTime Method GetLastAccessTimeUtc Method ...
Checks if a directory exists or not. Latest version: 2.1.0, last published: 8 years ago. Start using @justinc/dir-exists in your project by running `npm i @justinc/dir-exists`. There is 1 other project in the npm registry using @justinc/dir-exists.
EXISTS 操作用于检查指定路径的文件或目录是否存在。如果路径存在,条件为真(True),否则为假(False)。 if(EXISTS "${PROJECT_SOURCE_DIR}/myfile.txt") message("myfile.txt exists.") else() message("myfile.txt does not exist.") endif() 判断是否为目录 IS_DIRECTORY 用于检查给定的路径是否是一个目录...
(var1 AND var2)if (var1 OR var2)if (COMMAND cmd)：如果 cmd 确实是命令并可调用为真if (EXISTS dir) if (EXISTS file)：如果目录或文件存在为真if (file1 ISNEWERTHAN file2)：当 file1 比 file2 新，或 file1/file2 中有一个不存在时为真，文件名需使用全路径if (IS_DIRECTORY dir)：当 ...
Directory.Exists(strFolder)) { Directory.CreateDirectory(strFolder); }// Save the uploaded file to the server.strFilePath = strFolder + strFileName;if(File.Exists(strFilePath)) { lblUploadResult.Text = strFileName +" already exists on the server!"; }else{ oFile.PostedFile.SaveAs(s...