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c#正则表达式获取代码中的标题与日志ID号码。(QQ空间日志的采集操作)

0
悬赏园豆:60 [已解决问题] 解决于 2012-08-03 17:58

问题如题:附代码如下

View Code
_Callback({"blogids":[1338208697, 1343713117, 1343712578, 1343712001, 1343711473], "html":"<ul class=\"guest_mode\">               <li class=\"odd                    \">    <input type=\"checkbox\" name=\"batchSingleCheckInput\" bid=\"1338208697\" />     <!-- 左边标题 -->    <p class=\"list_tit\">     [<a class=\"unline\" href=\"javascript:;\" onclick=\"ListManager.selectCategory(\'个人日记\',\'b8f6c8cbc8d5bcc7\');QZBlog.Util.Statistic.sendPV(\'classname_click\', \'rizhi.qzone.qq.com\');return false;\" title=\"个人日记\">个人日记</a>]      <a href=\"javascript:;\" class=\"blog_link\" onclick=\"ListManager.selectBlog(1338208697);return false;\">      <span title=\"title -- 发表于2012-05-28 20:38\">                     <em class=\"c_tx4\">[顶]</em>              <span id=\"blogtitle_1338208697\" >        title       </span>      </span>                                                                          </a>                <span class=\"blog_num c_tx2\" title=\"title -- 发表于 2012-05-28 20:38\">2012-05-28 20:38</span>         </p>        <!-- 右边功能选项 -->    <div class=\"list_num \">     <!-- (评论/阅读) -->     (<span class=\"hit_none\"><span id=\"ReplyCntSpan1338208697\" style=\"text-decoration:none\" title=\"评论数:49\">49</span>/<span id=\"ViewCntSpan1338208697\" style=\"text-decoration:none\" title=\"阅读数\">loading</span></span>)          </div>   </li>             <li class=\"       bg3                    \">    <input type=\"checkbox\" name=\"batchSingleCheckInput\" bid=\"1343713117\" />     <!-- 左边标题 -->    <p class=\"list_tit\">     [<a class=\"unline\" href=\"javascript:;\" onclick=\"ListManager.selectCategory(\'个人日记\',\'b8f6c8cbc8d5bcc7\');QZBlog.Util.Statistic.sendPV(\'classname_click\', \'rizhi.qzone.qq.com\');return false;\" title=\"个人日记\">个人日记</a>]      <a href=\"javascript:;\" class=\"blog_link\" onclick=\"ListManager.selectBlog(1343713117);return false;\">      <span title=\"黑马QQ群营销大师软件营销效果分析 -- 发表于2012-07-31 13:38\">                            <em class=\"c_tx4\">[转]</em>       <span id=\"blogtitle_1343713117\" >        黑马QQ群营销大师软件营销效果分析       </span>      </span>            <img src=\"/ac/b.gif\" alt=\"附带图片\" title=\"附带图片\" class=\"icon_pic\"/>                                                              </a>                <span class=\"blog_num c_tx2\" title=\"黑马QQ群营销大师软件营销效果分析 -- 发表于 2012-07-31 13:38\">2012-07-31 13:38</span>         </p>        <!-- 右边功能选项 -->    <div class=\"list_num \">     <!-- (评论/阅读) -->     (<span class=\"hit_none\"><span id=\"ReplyCntSpan1343713117\" style=\"text-decoration:none\" title=\"评论数:0\">0</span>/<span id=\"ViewCntSpan1343713117\" style=\"text-decoration:none\" title=\"阅读数\">loading</span></span>)          </div>   </li>             <li class=\"odd                    \">    <input type=\"checkbox\" name=\"batchSingleCheckInput\" bid=\"1343712578\" />     <!-- 左边标题 -->    <p class=\"list_tit\">     [<a class=\"unline\" href=\"javascript:;\" onclick=\"ListManager.selectCategory(\'个人日记\',\'b8f6c8cbc8d5bcc7\');QZBlog.Util.Statistic.sendPV(\'classname_click\', \'rizhi.qzone.qq.com\');return false;\" title=\"个人日记\">个人日记</a>]      <a href=\"javascript:;\" class=\"blog_link\" onclick=\"ListManager.selectBlog(1343712578);return false;\">      <span title=\"名间特效胃药-胃宁 -- 发表于2012-07-31 13:29\">                            <em class=\"c_tx4\">[转]</em>       <span id=\"blogtitle_1343712578\" >        名间特效胃药-胃宁       </span>      </span>            <img src=\"/ac/b.gif\" alt=\"附带图片\" title=\"附带图片\" class=\"icon_pic\"/>                                      <img src=\"/ac/b.gif\" alt=\"附带信纸\" title=\"附带信纸\" class=\"icon_letter\"/>                        </a>                <span class=\"blog_num c_tx2\" title=\"名间特效胃药-胃宁 -- 发表于 2012-07-31 13:29\">2012-07-31 13:29</span>         </p>        <!-- 右边功能选项 -->    <div class=\"list_num \">     <!-- (评论/阅读) -->     (<span class=\"hit_none\"><span id=\"ReplyCntSpan1343712578\" style=\"text-decoration:none\" title=\"评论数:0\">0</span>/<span id=\"ViewCntSpan1343712578\" style=\"text-decoration:none\" title=\"阅读数\">loading</span></span>)          </div>   </li>             <li class=\"       bg3                    \">    <input type=\"checkbox\" name=\"batchSingleCheckInput\" bid=\"1343712001\" />     <!-- 左边标题 -->    <p class=\"list_tit\">     [<a class=\"unline\" href=\"javascript:;\" onclick=\"ListManager.selectCategory(\'个人日记\',\'b8f6c8cbc8d5bcc7\');QZBlog.Util.Statistic.sendPV(\'classname_click\', \'rizhi.qzone.qq.com\');return false;\" title=\"个人日记\">个人日记</a>]      <a href=\"javascript:;\" class=\"blog_link\" onclick=\"ListManager.selectBlog(1343712001);return false;\">      <span title=\"走在一起是缘份,一起在走是幸福 -- 发表于2012-07-31 13:20\">                            <em class=\"c_tx4\">[转]</em>       <span id=\"blogtitle_1343712001\" >        走在一起是缘份,一起在走是幸福       </span>      </span>                                                                          </a>                <span class=\"blog_num c_tx2\" title=\"走在一起是缘份,一起在走是幸福 -- 发表于 2012-07-31 13:20\">2012-07-31 13:20</span>         </p>        <!-- 右边功能选项 -->    <div class=\"list_num \">     <!-- (评论/阅读) -->     (<span class=\"hit_none\"><span id=\"ReplyCntSpan1343712001\" style=\"text-decoration:none\" title=\"评论数:0\">0</span>/<span id=\"ViewCntSpan1343712001\" style=\"text-decoration:none\" title=\"阅读数\">loading</span></span>)          </div>   </li>             <li class=\"odd                    \">    <input type=\"checkbox\" name=\"batchSingleCheckInput\" bid=\"1343711473\" />     <!-- 左边标题 -->    <p class=\"list_tit\">     [<a class=\"unline\" href=\"javascript:;\" onclick=\"ListManager.selectCategory(\'个人日记\',\'b8f6c8cbc8d5bcc7\');QZBlog.Util.Statistic.sendPV(\'classname_click\', \'rizhi.qzone.qq.com\');return false;\" title=\"个人日记\">个人日记</a>]      <a href=\"javascript:;\" class=\"blog_link\" onclick=\"ListManager.selectBlog(1343711473);return false;\">      <span title=\"千米QQ空间营销软件常用广告--图片超级链接代码分享(广告必备) -- 发表于2012-07-31 13:11\">                            <em class=\"c_tx4\">[转]</em>       <span id=\"blogtitle_1343711473\" >        千米QQ空间营销软件常用广告--图片超级链接代码分享(广告必备)       </span>      </span>                                                                          </a>                <span class=\"blog_num c_tx2\" title=\"千米QQ空间营销软件常用广告--图片超级链接代码分享(广告必备) -- 发表于 2012-07-31 13:11\">2012-07-31 13:11</span>         </p>        <!-- 右边功能选项 -->    <div class=\"list_num \">     <!-- (评论/阅读) -->     (<span class=\"hit_none\"><span id=\"ReplyCntSpan1343711473\" style=\"text-decoration:none\" title=\"评论数:0\">0</span>/<span id=\"ViewCntSpan1343711473\" style=\"text-decoration:none\" title=\"阅读数\">loading</span></span>)          </div>   </li>      </ul>   "})

利用正则表达式实现取出每一个日志标题与对应的ID号码。

如代码:<span id=\"blogtitle_1343712578\" >        名间特效胃药-胃宁       </span> 

其中的:1343712578 为所须取出的日志ID号码

“名间特效胃药-胃宁"   为日志标题。所获取代码中每一篇日志的格式都是如此,唯一不同的就是ID号与日志标题内容不一样。求解……

老虎下山的主页 老虎下山 | 初学一级 | 园豆:43
提问于:2012-08-03 12:21
< >
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最佳答案
1
string str = "<span id=\"blogtitle_1343712578\" >        名间特效胃药-胃宁       </span>";
            Regex reg = new Regex("<span id=\"blogtitle_(?<ID>.*?)\" >(?<Title>.*?)</span>");
            MatchCollection m;
            m = reg.Matches(str);
            string[] MatchValue = new string[m.Count];
            for (int i = 0; i < m.Count; i++)
            {
                MatchValue[i] = m[i].Groups["ID"].Value.Trim();
         MatchValue[i] = m[i].Groups["Title"].Value.Trim();
       }

楼主用这段代码就可以,取值的话就用在for循环里

az235 | 大侠五级 |园豆:8283 | 2012-08-03 14:45

我这测试无法取出啊,求解

老虎下山 | 园豆:43 (初学一级) | 2012-08-03 16:42

@老虎下山: 贴出你的代码来

az235 | 园豆:8283 (大侠五级) | 2012-08-03 16:46

@老虎下山: 我看下你是怎么写的

az235 | 园豆:8283 (大侠五级) | 2012-08-03 16:46

@az235: 直接 用messagebox show 出字符串的,但是调试过程中查看到,正则根本没有匹配到任何值 。m.count 的值 为0

老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:05

@老虎下山:你把程序放上来下,我看看,完整的代码

az235 | 园豆:8283 (大侠五级) | 2012-08-03 17:11

@az235: 

WebClient getID = new WebClient();
            string url = "http://b.qzone.qq.com/cgi-bin/blognew/blog_output_titlelist?uin=" + qq + "&vuin=0&property=GoRE&getall=1&styledm=ctc.qzonestyle.gtimg.cn&imgdm=ctc.qzs.qq.com&bdm=b.qzone.qq.com&category=&num=15&sorttype=0&arch=0&from=-15&maxlen=68&v=1";
string str = getID.DownloadString(url);
Regex reg = new Regex("<span id=\"blogtitle_(?<id>.*?)\" >(?<title>.*?)</span>");
            MatchCollection m;
            m = reg.Matches(str);
            string[] MatchValue = new string[m.Count];
            for (int i = 0; i < m.Count; i++)
            {
                MatchValue[i] = m[i].Groups["id"].Value.Trim(); 
                MatchValue[i] = m[i].Groups["title"].Value.Trim();
                MessageBox.Show(MatchValue[i].ToString());
            }
老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:13

@老虎下山: qq变量的值是多少?

az235 | 园豆:8283 (大侠五级) | 2012-08-03 17:18

@az235: QQ号码即可

老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:23

@老虎下山: 我测试用的号码:450329990 取值 就不成功。

老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:34

@老虎下山: 

 WebClient getID = new WebClient();
            string url = "http://b.qzone.qq.com/cgi-bin/blognew/blog_output_titlelist?uin=1343711473&vuin=0&property=GoRE&getall=1&styledm=ctc.qzonestyle.gtimg.cn&imgdm=ctc.qzs.qq.com&bdm=b.qzone.qq.com&category=&num=15&sorttype=0&arch=0&from=-15&maxlen=68&v=1";
            string str = getID.DownloadString(url);
            str = str.Replace("\\","");
            Regex reg = new Regex("<span id=\"blogtitle_(?<id>.*?)\" >(?<title>.*?)</span>");
            MatchCollection m;
            m = reg.Matches(str);
            string[] MatchValue = new string[m.Count];
            for (int i = 0; i < m.Count; i++)
            {
                MatchValue[i] = m[i].Groups["id"].Value.Trim();
            }
返回的内容要替换下,加上这句话 str = str.Replace("\\","");
原因是返回\" 在调试状态下看到的是\\\"这样的
az235 | 园豆:8283 (大侠五级) | 2012-08-03 17:45

@az235: 谢谢,成功得解啦。

老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:56

@az235: 

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{"account":"hunantv2011","flag1":129,"flag2":0,"follower":1069530,"following":32,"idol":0,"nick":"2011\u6e56\u5357\u6625\u665a","portrait":"http://mbloghead.store.qq.com/mbloghead/97855424cac575e8bc14"

求高手指点一下另一个关于正则表达式的问题,内容如上,我想取出其中的每一个

"account"后面紧跟着的账号,以及
"nick": 后面紧跟的一串字符串,
如上所示的:account: hunantv2011
nick:"2011\u6e56\u5357\u6625\u665a"
老虎下山 | 园豆:43 (初学一级) | 2012-08-24 22:14
其他回答(3)
0

请问需要空间密码的能采集吗?用什么方式?

收获园豆:60
编程笔记 | 园豆:107 (初学一级) | 2012-08-03 12:43
1

最近很奇怪啊,为啥发现好多问题是问,把 html post 到服务器上,然后需要用正则 取出 html 里面的东西,

为啥不在客户端,直接用 jq 选择器取好,做成 json ,然后 post 呢?

张坤 | 园豆:1865 (小虾三级) | 2012-08-03 12:54

这些就直接从服务器上get下来的数据,需要二次开发使用。

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 12:58

@老虎下山: 

(?<=blogtitle_)\d+(?=\\) 能取出  blogtitle_  和 \ 之间的数字

(?<=blogtitle_.*?>).*(?=</span>) 能取出包含 blogtitle 标签中的内容

 

正则写的比较锉,哈哈

支持(0) 反对(0) 张坤 | 园豆:1865 (小虾三级) | 2012-08-03 13:09

@张坤: 呵呵,还是不错的。第一个可以成功取出ID号,但是第二取出标题的正则无法实现哦。

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 14:00

@老虎下山: (?=<span id=\\"blogtitle_\d+\\" >).*?(?=</span>)

酱紫再试试,哈哈

支持(0) 反对(0) 张坤 | 园豆:1865 (小虾三级) | 2012-08-03 15:04

@张坤: 可以取出值 ,但是多了前面一部分。怎么去除呢。

测试到的结果:<span id=\"blogtitle_1338208697\" >        title      
<span id=\"blogtitle_1343713117\" >        黑马QQ群营销大师软件营销效果分析      
<span id=\"blogtitle_1343712578\" >        名间特效胃药-胃宁      
<span id=\"blogtitle_1343712001\" >        走在一起是缘份,一起在走是幸福      
<span id=\"blogtitle_1343711473\" >        千米QQ空间营销软件常用广告--图片超级链接代码分享(广告必备)      

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 16:46

@老虎下山: 是的,我没处理内容的开头和结尾 空格,你 trim 下!

支持(0) 反对(0) 张坤 | 园豆:1865 (小虾三级) | 2012-08-03 16:50

@张坤: 后面的空白还好处理,可是前面部分多的不单单是空格。是多出了一串“<span id=\"blogtitle_1343711473\" >       ” 这个字符串。呵呵。

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:17

@老虎下山: 不会的啊,我用的 零宽断言,前面那段只是匹配位置,不占据内容啊,你那边检查下!

支持(0) 反对(0) 张坤 | 园豆:1865 (小虾三级) | 2012-08-03 17:20

@张坤: 怪事了,反复测试。包括用工具测试都会有前面那一部分内容出现的。呵呵

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:31

@老虎下山: 

好吧 ,我反2了 ,是我弄错了,少了一个字符,

(?<=<span id=\\"blogtitle_\d+\\" >).*?(?=</span>)

 

少了红色字符,不好意思,耽误你时间啦!

支持(1) 反对(0) 张坤 | 园豆:1865 (小虾三级) | 2012-08-03 17:34

@张坤: 呵呵,客气了。谢谢你的解答。已经成功取到值了。

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 17:41
-1

@"<([a-z]+)(?:(?!id)[^<>])*id=([""']?)blogtitle_(\d+?)\2[^>]*>([\s\S]+?)</\1>

咔咔 | 园豆:204 (菜鸟二级) | 2012-08-03 13:49

无法取到有效值……

支持(0) 反对(0) 老虎下山 | 园豆:43 (初学一级) | 2012-08-03 14:04

@老虎下山: 可以的,我试过

支持(0) 反对(0) 咔咔 | 园豆:204 (菜鸟二级) | 2012-08-04 10:01
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