将XML文件转化成NSData对象

 NSData *xmlData = [[NSData alloc]initWithContentsOfFile:[NSString stringWithFormat:@"%@/People.xml",[[NSBundle mainBundle] resourcePath]]];

    //2.将xmlData转化成xml文档

    GDataXMLDocument *xmlDocument = [[GDataXMLDocument alloc]initWithData:xmlData options:0 error:nil];

    //3.得到节点

    GDataXMLElement *rootElement = xmlDocument.rootElement;

    //4.得到子节点

 /*NSArray *elementArray = rootElement.children;

    //得到classone节点

    GDataXMLElement *classoneElement = [elementArray firstObject];

    for(GDataXMLElement *element in classoneElement.children)

    {

        //得到当前节点的文本值

        NSLog(@"%@",element.stringValue);

        if (element.children.count>0) {

            GDataXMLElement *infoElement = [element.children lastObject];

            //获得节点的全部属性和属性值

            NSArray *attArray = infoElement.attributes;

            for (GDataXMLElement *attElement in attArray) {

                //得到属性名和属性值

                NSLog(@"%@-%@",attElement.name,attElement.stringValue);

            }

        }

    }

     */

    //模糊查找

    NSArray *eArray = [rootElement nodesForXPath:@"//info" error:nil];

    NSLog(@"%@",eArray);