Code
   protected void Page_Load(object sender, EventArgs e)
        {
            string jsonstr = Request.QueryString["people"].ToString();
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            Dictionary<string,object> json = (Dictionary<string,object>)serializer.DeserializeObject(jsonstr);
            //json["programmers"]返回一個object但這個object是一個object[]怎麼遍歷把他們的值取出來？
         
            
        }

Code
var people = { "programmers": [{ "firstName": "Brett", "lastName": "McLaughlin",
                "email": "brett@newInstance.com"
            }, { "firstName": "Jason", "lastName": "Hunter",
                "email": "jason@servlets.com"
            }, { "firstName": "Elliotte", "lastName": "Harold",
                "email": "elharo@macfaq.com"}], "authors": [{ "firstName": "Isaac",
                    "lastName": "Asimov", "genre": "science fiction"
                }, { "firstName": "Tad",
                    "lastName": "Williams", "genre": "fantasy"
                }, { "firstName": "Frank",
                    "lastName": "Peretti", "genre": "christian fiction"}], "musicians": [
{ "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" },
{ "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano"}]
}


var url = "Default.aspx?people=" +people.toJSONString();