文件路径判断是文件还是文件夹

方法1

+ (BOOL)isDirectory:(NSString *)filePath
{
    BOOL isDirectory = NO;
    [[NSFileManager defaultManager] fileExistsAtPath:filePath isDirectory:&isDirectory];
    return isDirectory;
}

方法2

+ (BOOL)isDirectory:(NSString *)filePath
{
    NSNumber *isDirectory;
    NSURL *fileUrl = [NSURL fileURLWithPath:filePath];
    [fileUrl getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:nil];
    return isDirectory.boolValue;
}