1 导入xml包
2 设置building setting
(1) header search paths 设置为/usr/include/libxml2
(2) other linker flags 设置为 -lxml2
3 导入头文件
4 根据data创建dataXML
GDataXMLDocument *doucument = [[GDataXMLDocument alloc] initWithData:[request responseData] options:0 error:nil];
5 根据所需数据的路径获得数组
NSString *path = @"/rss/channel/image/url";
NSArray *arr = [doucument nodesForXPath:path error:nil];
GDataXMLElement *elem = [arr lastObject];
6GDataXMLElement *elem = [arr lastObject];
NSLog(@"%@",[elem stringValue]);