试了一下。基本上适合全部的检索结果。

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    //获取数据

    NSURL *url=[NSURL URLWithString:@"http://s.g.wanfangdata.com.cn/Paper.aspx?q=hiv"];

    NSURLRequest *request=[NSURLRequest requestWithURL:url];

    NSData *data=[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

    //解析数据

    TFHpple *hpple=[TFHpple hppleWithHTMLData:data];

    //XPATH字符串 越短越好。可是要能过滤出符合要求的结果

    //xpath教程:http://www.w3cschool.cn/index-14.html

    NSString *xpathStr =@"//div/ul/li [@class='title_li']   /a [not(@class)]";//解析标题

    NSString *xpathStr2 =@"//div/ul/li [@class='zi'] ";//解析简单介绍

    NSArray *arr=[hpple searchWithXPathQuery:xpathStr];

    NSArray *arr2=[hpple searchWithXPathQuery:xpathStr2];

    //NSLog(@"%@",arr2);

    //这个数组中就有须要的值

    alltilte=[[NSMutableArray alloc]init];

    alltext=[[NSMutableArray alloc]init];

    alltilte = [self SaveArry:arr];

    alltext = [self SaveAlltext:arr2];

    for(int i=0;i<alltilte.count;i++)

    {

        NSLog(@"标题%@",alltilte[i]);

        NSLog(@"简单介绍%@",alltext[i]);

    }

    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];

}

-(NSMutableArray *)SaveAlltext :(NSArray *)_arry

{

    for (TFHppleElement *tmp in _arry)

    {

        NSString * string =[tmp raw];

        NSRange range;

        //        NSRange range2;

        range = [string rangeOfString:@"<br />"];

        string = [string substringToIndex:range.location];

        NSString  *temp =[string stringByReplacingOccurrencesOfString:@"<li class=\"zi\">

"

                                                           withString:@""];

        temp =[temp stringByReplacingOccurrencesOfString:@"<font color=\"red\">"

                                              withString:@""];

        temp =[temp stringByReplacingOccurrencesOfString:@"</font>"

                                              withString:@""];

        temp =[temp stringByReplacingOccurrencesOfString:@"<li class=\"zi\">"

                                              withString:@""];

        [alltext addObject:temp];

    }

    return alltext;

}

-(NSMutableArray *)SaveArry: (NSArray *)_arry

{

    for (TFHppleElement *tmp in _arry)

    {

        NSString * string =[tmp raw];

        NSRange range;

        NSRange range2;

        range = [string rangeOfString:@"</a>"];

        string = [string substringToIndex:range.location];

        NSString  *temp =[string stringByReplacingOccurrencesOfString:@"<font color=\"red\">" withString:@""];

        temp=[temp stringByReplacingOccurrencesOfString:@"</font>" withString:@""];

        range = [string rangeOfString:@">"];

        range2 = [string rangeOfString:@"img"];

        if(range.length!=0&&range2.length==0)

        {

            string = [temp substringFromIndex:range.location+1];

           [alltilte addObject:string];

        }

    }

    return alltilte;

}