C#解析Json键值对

1. 使用Newtonsoft.Json.dll。

      引用：using Newtonsoft.Json.Linq;

string data_json = "{\"codetype\": \"1\", \"pagram\": { \"return_url \": \"http: //www.alipay.com\", \"scene\": \"bar_code\", \"buyer_id\": \"2088101568338364\", \"auth_code\": \"28763443825664394 \",
 \"extend_params\": \"foreigner \", \"card_org_no\": \"00011 \" } }";  
    var jsObject = JObject.Parse(data_json);  
      
                foreach (JToken child in jsObject.Children())  
                {  
                    var property1 = child as JProperty;  
                    MessageBox.Show(property1.Name + ":" + property1.Value);  
    }  


多层Json


    var jsObject = JObject.Parse(data_json);  
      
    foreach (JToken child in jsObject.Children())  
    {  
        //var property1 = child as JProperty;  
        //MessageBox.Show(property1.Name + ":" + property1.Value);  
        foreach (JToken grandChild in child)  
        {  
            foreach (JToken grandGrandChild in grandChild)  
            {  
                var property = grandGrandChild as JProperty;  
                if (property != null)  
                {  
                    MessageBox.Show(property.Name + ":" + property.Value);  
                }  
            }  
        }  
    }  
 

2.

string strjson = @"{
    "codetype": "1",
    "pagram": {
        "return_url ": "http: //www.alipay.com",
        "scene": "bar_code",
        "buyer_id": "2088101568338364",
        "auth_code": "28763443825664394 ",
        "extend_params": "foreigner ",
        "card_org_no": "00011 "
    }
}";

   var json = Newtonsoft.Json.JsonConvert.DeserializeObject(pagram) as JObject;
   string data = json["data"].ToString();

 Console.WriteLine("{0} {1} {2}", json["data"].ToString());