用js来计算出这组json数据的数量

[疲劳编码]

{"article":[{"title":"鼠标延迟鼠标延迟鼠标延迟6","time":"123456789","article_id":"746956577","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"},{"title":"鼠标延迟鼠标延迟鼠标延迟7","time":"123456789","article_id":"746956597","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"},{"title":"鼠标延迟鼠标延迟鼠标延迟8","time":"123456789","article_id":"743956597","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"},{"title":"鼠标延迟鼠标延迟鼠标延迟9","time":"123456789","article_id":"743956697","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"},{"title":"鼠标延迟鼠标延迟鼠标延迟10","time":"123456789","article_id":"743956897","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"},{"title":"鼠标延迟鼠标延迟鼠标延迟11","time":"123456789","article_id":"743756897","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"}]}

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{"title":"鼠标延迟鼠标延迟鼠标延迟8","time":"123456789","article_id":"743956597","thumb_url":"http://baidu.com/images/article_slide/article_thumb.jpg"}

这样的格式算作一篇文章，要求计算出一共有几篇文章？

[Hello World,]

article.length

[二月十六]

    <script>
        function test() {
            var obj = { "article": [{ "title": "鼠标延迟鼠标延迟鼠标延迟6", "time": "123456789", "article_id": "746956577", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }, { "title": "鼠标延迟鼠标延迟鼠标延迟7", "time": "123456789", "article_id": "746956597", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }, { "title": "鼠标延迟鼠标延迟鼠标延迟8", "time": "123456789", "article_id": "743956597", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }, { "title": "鼠标延迟鼠标延迟鼠标延迟9", "time": "123456789", "article_id": "743956697", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }, { "title": "鼠标延迟鼠标延迟鼠标延迟10", "time": "123456789", "article_id": "743956897", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }, { "title": "鼠标延迟鼠标延迟鼠标延迟11", "time": "123456789", "article_id": "743756897", "thumb_url": "http://baidu.com/images/article_slide/article_thumb.jpg" }] }

            //这里获取条数
            alert(obj.article.length);
        }
    </script>
    <a href="#" onclick="test()">测试</a>

结果

[文修]

楼主你好， 如果这个是一个json格式的数据，那就直接用obj.article.length就可以取得值了 如果只是一个字符串，可以用下面的函数转化为json function strToJson(str){ var json = eval('(' + str + ')'); return json; } 再用第一种方法