josn反序列化

[yoyo_]

请问下大家像这样的json字符串要怎么反序列化成实体对象呢？
\"{\"right_picture\":\"a:2:{s:13:\"right_pic_url\",s:57:\"http:\\/\\/www.sinaimg.cn\\/blog\\/miniblog\\/media\\/radio\\/12334.jpg\",s:14:\"right_link_url\",s:49:\"http:\\/\\/video.sina.com.cn\\/z\\/weiboradio\\/index.shtml\",}\"

[gxingmin]

using System.Web.Script.Serialization;

 json = json.Trim();
        if (json[0] != '[')
            json = "[" + json;
        if (json[json.Length - 1] != ']')
            json = json + "]";

        JavaScriptSerializer jss = new JavaScriptSerializer();
        ArrayList arrList = jss.Deserialize<ArrayList>(json);