NSXML解析器解析節點的節點

Question

我有一個這樣的XML，

<?xml version="1.0" standalone="yes"?> 
<user id="1" name=""><class id="1" name=""><subjects id="1" name=""><books id="1" name=""> 
<chapters id="1" name=""> 
<pages id="0" name="" url="http://172.16.33.25/casa/admin/uploads/mathematic/Page001.html"/> 
<pages id="1" name="" url="http://172.16.33.25/casa/admin/uploads/mathematic/Page002.html"/> 
</chapters></books></subjects></class></user> 

在這裏，我需要在數組中的URL值，我使用NSXML分析器。我如何解析這個？

Answer 1

嘗試

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict 
{   
    if([elementName isEqualToString:@"pages"]) 
    { 
     NSString *urlValue=[attributeDict valueForKey:@"url"]; 
     [arr addObject:urlValue]; 
    } 
}