Question

请问如何用js获取想要的div里面的信息

<div class="l_post " data-field="{"author":{"id":205436157,"name":"wurzziyoon","name_u":"wurzziyoon","gender":2,"portrait":"fdb47775727a7a69796f6f6e3e0c","has_grade":true,"grade_level":3,"grade_name":"\u9ad8\u7ea7\u7c89\u4e1d","grade_exp":20,"fans_num":9,"is_concerned":false,"is_private":false,"outer_id":"117730525"},"content":{"id":29335033342,"is_anonym":false,"open_id":"tieba","open_type":"","date":"2013-02-14 19:36","vote_crypt":"","floor":5,"type":"0"}}" data-passive="loaded">

如何获得;id":29335033342这断数字

Answer 1

var data=eval($(".l_post").val());
var resultId=data.content.id;

Answer 2

ASP.NET?！不懂....

追问

不管你用什么 能得到那数字么

追答

window.onload=function(){

var dd=document.getElementById('dd');

alert(dd.getAttribute('data-field'));

}

给那个div添加一个id="dd",通过上面的js代码能获得data-field的所有值。

还有，data-field的值应该用双引号括起来，双引号里面则应该用单引号。

当然方便点也可以，用单引号把data-field的所有值括i起来。例如：

<div id="dd" class="l_post " data-field='{"author":{"id":205436157,"name":"wurzziyoon","name_u":"wurzziyoon","gender":2,"portrait":"fdb47775727a7a69796f6f6e3e0c","has_grade":true,"grade_level":3,"grade_name":"\u9ad8\u7ea7\u7c89\u4e1d","grade_exp":20,"fans_num":9,"is_concerned":false,"is_private":false,"outer_id":"117730525"},"content":{"id":29335033342,"is_anonym":false,"open_id":"tieba","open_type":"","date":"2013-02-14 19:36","vote_crypt":"","floor":5,"type":"0"}}' data-passive="loaded"></div>