文件操作

来源：互联网发布：用友软件销售技巧编辑：程序博客网时间：2024/06/10 07:38

显示Mac隐藏文件的命令：defaults write com.apple.finder AppleShowAllFiles -bool true
隐藏Mac隐藏文件的命令：defaults write com.apple.finder AppleShowAllFiles -bool false
输完单击Enter键，退出终端，重新启动Finder就可以了
重启Finder：鼠标单击窗口左上角的苹果标志-->强制退出-->Finder-->

复制代码

//NSCachesDirectory NSCachesDirectory NSLibraryDirectory
NSString *homeDirectory = NSHomeDirectory(); //获取程序HOME目录
NSString *tempDirectory = NSTemporaryDirectory(); //获取程序缓存目录
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSAllDomainsMask, YES); //获取document目录
NSString *documentPath = [documentPaths objectAtIndex:0];
NSArray *cachesPaths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSAllDomainsMask, YES); //获取cache目录
NSString *cachePath = [cachesPaths objectAtIndex:0];
NSArray *libraryPaths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSAllDomainsMask, YES); //所有library目录
NSString *libraryPath = [libraryPaths objectAtIndex:0];
NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];
[array writeToFile:filePath atomically:YES]; //写入文件
NSArray *arr = [[NSArray alloc] initWithContentsOfFile: filePath] 读取文件Path];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *testDirectory = [documentsDirectory stringByAppendingPathComponent:@"test"]; //创建目录 [fileManager createDirectoryAtPath:testDirectory withIntermediateDirectories:YES attributes:nil error:nil];
//创建文件
NSString *testPath4 = [testDirectory stringByAppendingPathComponent:@"TEST44.txt"];
NSString *string = @"写入内容，write String";
[fileManager createFileAtPath:testPath4 contents:[string dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
//遍历目录
NSArray *file = [fileManage subpathsAtPath:myDirectory];
NSArray *files = [fileManage subpathsOfDirectoryAtPath:myDirectory error:nil];
//更改到待操作的目录下
[fileManager changeCurrentDirectoryPath:[documentsDirectory stringByExpandingTildeInPath]];
//创建文件fileName文件名称，contents文件的内容，如果开始没有内容可以设置为nil，attributes文件的属性，初始为nil
NSString * fileName = @"testFileNSFileManager.txt";
NSData *data = [fileManager contentsAtPath:fileName];
[fileManager createFileAtPath:fileName contents:data attributes:nil];
[fileManager removeItemAtPath:fileName error:nil];

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