objective c xml解析

    今天在CC上看到evangel在招人，上面写了一条数据解析，我想应该就是对XML的解析吧，暂且这样理解了，呵呵。下午搜索了一点东西自己弄了一个XML然后读读看看，现在仅仅是读出了一些东西，先保存代码，待后续更新！
    这个是我创建的xml文件，用于测试用的：
<?xml version="1.0" encoding="UTF-8"?>
<book>
 <book1>
 <author>zhangsan</author>
 <title>Hello this is book1</title>
 <content>book1 is very good for testing!</content>
 </book1>
 <book2>
 <author>lisi</author>
 <title>Hello this is book2</title>
 <content>book2 is very good for testing!</content>
 </book2>
 <book3>
 <author>wangwu</author>
 <title>Hello this is book3</title>
 <content>book3 is very good for testing!</content>
 </book3>
</book>
对xml进行解析需要使用NSXMLParser类，首先声明一个NSXMLParser对象
NSXMLParser *xmlRead;
NSString *path = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"xml"];
 NSFileHandle *file = [NSFileHandle fileHandleForReadingAtPath:path];
 NSData *data = [file readDataToEndOfFile];//得到xml文件
 [file closeFile];
 xmlRead = [[NSXMLParser alloc] initWithData:data];//初始化NSXMLParser对象
 [data release];
 [xmlRead setDelegate:self];//设置NSXMLParser对象的解析方法代理
 BOOL success = [xmlRead parse];//调用代理解析NSXMLParser对象，看解析是否成功
//解析器，从两个结点之间读取内容
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
NSLog(string);
}
//获得结点结尾的值
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
  namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
 NSLog(elementName);
}
//获得结点头的值
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName