@interface ViewController ()<NSXMLParserDelegate>
@end
-(void)parserXml{
  // 0.請(qǐng)求路徑
  NSURL *url = [NSURL URLWithString:@"xmlUrl"];
  // 1.創(chuàng)建請(qǐng)求對(duì)象
  NSURLRequest *request = [NSURLRequest requestWithURL:url];
  // 2.發(fā)送請(qǐng)求
  [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
  // 創(chuàng)建XML解析器
  NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
  // 設(shè)置代理
  parser.delegate = self;
  // 開始解析XML
  [parser parse];
 }];
}

pragma mark - <NSXMLParserDelegate>

   * 解析到某個(gè)元素的結(jié)尾（比如解析</videos>）
   -(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{}

   * 解析到某個(gè)元素的開頭（比如解析<videos>）
   -(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
   {
     if ([elementName isEqualToString:@"videos"]) return;
   }

   * 開始解析XML文檔
   -(void)parserDidStartDocument:(NSXMLParser *)parser{}

   * 解析完畢
   -(void)parserDidEndDocument:(NSXMLParser *)parser{}