How to use nsfilemanager

To summarize NSFileManager Some common methods of ,

    NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory ,NSUserDomainMask,YES);

   NSString *documentDirectory = [paths objectAtIndex:];

   NSLog(@"%@", documentDirectory);// Path view

     //1. Create folder

    NSFileManager *fileManager = [NSFileManagerdefaultManager];

   NSString *testDirectory = [documentDirectory stringByAppendingPathComponent:@"testbug1"];// Create folder

    // Create directory

    [fileManager createDirectoryAtPath:testDirectorywithIntermediateDirectories:YESattributes:nilerror:nil];

    //2. create a file

   NSString *test11 = [testDirectory stringByAppendingPathComponent:@"test111.txt"];

   NSString *test22 = [testDirectory stringByAppendingPathComponent:@"test222.txt"];

   NSString *string = @" Write content 1";

    [fileManager createFileAtPath:test11contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];

    [fileManager createFileAtPath:test22contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];

    //3. see Document All the documents in

   NSArray *files = [fileManager subpathsAtPath:documentDirectory];

    //4. View all sub files in the directory

   NSArray *subfiles = [fileManager subpathsAtPath:testDirectory];

   NSLog(@"%@", subfiles);

   NSLog(@"%@", files);

    //5. Change to the directory to be operated

    [fileManager changeCurrentDirectoryPath:[documentDirectorystringByExpandingTildeInPath]];

    // create a file filename file name ,contents The content of the document

    NSString *fileName [email protected]"testfilemanager.txt";

    NSArray *array = [[NSArrayalloc]initWithObjects:@"hello world",@"hello World", nil];

    [fileManagercreateFileAtPath:fileName contents:array attributes:nil];

    //6. Delete file

    [fileManagerremoveItemAtPath:fileName error:nil];

    //7. Copy files from the latter to the former

   NSError *error;

    [fileManagercopyItemAtPath:test11 toPath:test22 error:&error];

    //8. Moving files

   NSString *test33 = [documentDirectory stringByAppendingPathComponent:@"test33.txt"];

   if ([fileManager moveItemAtPath:test11toPath:test33 error:&error] !=YES) {

        NSLog(@"111%@", [errorlocalizedDescription]);

    }

    //9. Does the file exist

    if ([[NSFileManagerdefaultManager]fileExistsAtPath:@"/Users/dlios/Library/Application Support/iPhone Simulator/7.1/Applications/AC7B8788-BDCB-43AC-ABB6-8E9676CF94DC/Documents/testbug/test22333.txt"]) {

       NSLog(@"yes");

    }

   else NSLog(@"no");