iphone:解析html的第三库hpple初试

- (void)viewDidLoad
{
    [super viewDidLoad];
    NSError *error;
    
    NSData *htmlData = [[NSString stringWithContentsOfURL:[NSURL
                                                           URLWithString: @"http://dict.youdao.com/m/search?keyfrom=dict.mindex&vendor=&q=apple"]
                                                 encoding:NSASCIIStringEncoding error:&error]
                        dataUsingEncoding:NSUTF8StringEncoding];
    TFHpple *xpathParser = [[TFHpple alloc] initWithHTMLData:htmlData];
    NSArray *elements  = [xpathParser searchWithXPathQuery:@"//title"]; // get the title
    NSLog(@"%d",[elements count]);
    TFHppleElement *element = [elements objectAtIndex:0];
    
    NSString *content = [element content];
    NSString *tagname = [element tagName];
    NSString *attr = [element objectForKey:@"href"];
    NSLog(@"content = %@",content);
    NSLog(@"tagname = %@",tagname);
    NSLog(@"attr is = %@",attr);
}