IOS文件/文件夹操作

创建文件夹

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];
    BOOL isDir = NO;
    NSFileManager *fileManager = [NSFileManager defaultManager];
    BOOL existed = [fileManager fileExistsAtPath:imageDir isDirectory:&isDir];
    if ( !(isDir == YES && existed == YES) )
    {
        [fileManager createDirectoryAtPath:imageDir withIntermediateDirectories:YES attributes:nil error:nil];
    }

删除文件夹及所有文件

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];
 NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:imageDir error:nil];