Objective-C NSFileManager 文件管理总结

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原创最新推荐文章于 2026-06-05 09:16:08 发布 2.6k 阅读 AI 写同款· GEO 优化 ›

NSFileManager 文件管理详细介绍 1、前言这是一篇关于文件管理的博客，不说很全，但是很详细。涵盖90%的NSFileManger类的方法。各个方法的实现举例和介绍分析。如果有什么问题，可以加入：QQ:185341804 (成功QQ吧)或则加我QQ :1542100658 欢迎您的加入和询问。 2、目录大纲 3、代码全段 // // ViewController+KNSFileManager.m // NSF 阅读详情

createFileAtPath //创建文件

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath = [NSString stringWithFormat:@"%@/file1.txt",NSHomeDirectory()];
        NSString *strdata = @"test";
        
        bool bRet = [fm createFileAtPath:strpath contents:strdata attributes:nil];
        if(!bRet)
        {
            NSLog(@"create file error");
        }

copyItemAtPath //复制文件

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/file1.txt",NSHomeDirectory()];
        NSString *strpath2 = [NSString stringWithFormat:@"%@/file2.txt",NSHomeDirectory()];
        
        bool bRet = [fm copyItemAtPath:strpath1 toPath:strpath2 error:nil];
        if(!bRet)
        {
            NSLog(@"copy file error");
        }

moveItemAtPath //移动文件

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/file1.txt",NSHomeDirectory()];
        NSString *strpath2 = [NSString stringWithFormat:@"%@/file2.txt",NSHomeDirectory()];
        
        bool bRet = [fm moveItemAtPath:strpath1 toPath:strpath2 error:nil];
        if(!bRet)
        {
            NSLog(@"move file error");
        }

removeItemAtPath //删除文件

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/file1.txt",NSHomeDirectory()];
        
        bool bRet = [fm removeItemAtPath:strpath1 error:nil];
        if(!bRet)
        {
            NSLog(@"delete file error");
        }

attributesOfItemAtPath //获取文件属性，文件大字，返回NSDictionary

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/log.txt",NSHomeDirectory()];
        
        NSDictionary *dic = [fm attributesOfItemAtPath:strpath1 error:nil];
        NSLog(@"%@",dic);

currentDirectoryPath //获取当前目录

       NSFileManager *fm = [NSFileManager defaultManager];
       NSString *strpath = [fm currentDirectoryPath];
       NSLog(@"%@",strpath);

createDirectoryAtPath //创建目录

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/testdir",NSHomeDirectory()];
        bool bRet = [fm createDirectoryAtPath:strpath1 withIntermediateDirectories:NO attributes:nil error:nil];
        if(!bRet)
        {
            NSLog(@"create dir error");
        }

fileExistsAtPath //判断文件或目录是否存在

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/testdir",NSHomeDirectory()];
        bool bRet = [fm fileExistsAtPath:strpath1];
        if(!bRet)
        {
            NSLog(@"no file exist");
        }
        else
        {
            NSLog(@"file exist");
        }

enumeratorAtPath //枚举目录，将子目录全部枚举

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/Desktop",NSHomeDirectory()];
        NSDirectoryEnumerator *dirs = [fm enumeratorAtPath:strpath1];
        
        NSString *dir;
        while (dir=[dirs nextObject]) {
            NSLog(@"%@",dir);
        }

contentsOfDirectoryAtPath //枚举目录，不枚举子目录

        NSFileManager *fm = [NSFileManager defaultManager];
        NSString *strpath1 = [NSString stringWithFormat:@"%@/Desktop",NSHomeDirectory()];
        NSArray *dirs = [fm contentsOfDirectoryAtPath:strpath1 error:nil];
        
        NSString *dir;
        for (dir in dirs)
        {
            NSLog(@"%@",dir);
        }

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