NSfileManager的使用方法
總結了一下NSFileManager的一些常用方法，
NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory ,NSUserDomainMask,YES);
NSString *documentDirectory = [paths objectAtIndex:];
NSLog(@"%@", documentDirectory);//路徑查看
//1.創建文件夾
NSFileManager *fileManager = [NSFileManagerdefaultManager];
NSString *testDirectory = [documentDirectory stringByAppendingPathComponent:@"testbug1"];//創建文件夾
//創建目錄
[fileManager createDirectoryAtPath:testDirectorywithIntermediateDirectories:YESattributes:nilerror:nil];
//2.創建文件
NSString *test11 = [testDirectory stringByAppendingPathComponent:@"test111.txt"];
NSString *test22 = [testDirectory stringByAppendingPathComponent:@"test222.txt"];
NSString *string = @"寫入內容1";
[fileManager createFileAtPath:test11contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];
[fileManager createFileAtPath:test22contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];
//3.查看Document里所有文件
NSArray *files = [fileManager subpathsAtPath:documentDirectory];
//4.查看目錄里所有子文件
NSArray *subfiles = [fileManager subpathsAtPath:testDirectory];
NSLog(@"%@", subfiles);
NSLog(@"%@", files);
//5.更改到待操作的到目錄下
[fileManager changeCurrentDirectoryPath:[documentDirectorystringByExpandingTildeInPath]];
//創建文件filename文件名,contents文件的內容
NSString *fileName =@"testfilemanager.txt";
NSArray *array = [[NSArrayalloc]initWithObjects:@"hello world",@"hello World", nil];
[fileManagercreateFileAtPath:fileName contents:array attributes:nil];
//6.刪除文件
[fileManagerremoveItemAtPath:fileName error:nil];
//7.復制文件后者給前者
NSError *error;
[fileManagercopyItemAtPath:test11 toPath:test22 error:&error];
//8.移動文件
NSString *test33 = [documentDirectory stringByAppendingPathComponent:@"test33.txt"];
if ([fileManager moveItemAtPath:test11toPath:test33 error:&error] !=YES) {
NSLog(@"111%@", [errorlocalizedDescription]);
}
//9.文件是否存在
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");