C#中用JavaScriptSerializer和Json.Net操作json格式的文件

1.json文件

2.写出对应的类

        //折扣
        public class Discount
        {
            public string Qty { get; set; }
            public string percentage { get; set; }
        }
        //产品信息
        public class ProductInfo
        {
            public string packing { get; set; }
            public string Qty { get; set; }
            public List<Discount> Discount { get; set; }
        }
        //总信息
        public class RootObject
        {
            public string id { get; set; }
            public string date { get; set; }
            public List<ProductInfo> productInfo { get; set; }
        }

3.JavaScriptSerializer操作json

            string jsonText = File.ReadAllText("JSON文件.json");
            JavaScriptSerializer jss = new JavaScriptSerializer();
            RootObject root = jss.Deserialize<RootObject>(jsonText);
            Console.WriteLine(root.id + "==========" + root.date);
            Console.WriteLine(root.productInfo[0].packing + "======" + root.productInfo[0].Qty);
            Console.WriteLine(root.productInfo[0].Discount[0].Qty + "========" + root.productInfo[0].Discount[0].percentage);
            Console.WriteLine(root.productInfo[0].Discount[1].Qty + "=======" + root.productInfo[0].Discount[1].percentage);
            Console.ReadKey();

3.1运行结果

4.Json.Net操作json

            string jsonText = File.ReadAllText("JSON文件.json");
            //反序列化json字符串
            RootObject root=JsonConvert.DeserializeObject<RootObject>(jsonText);
            Console.WriteLine(root.id + "==========" + root.date);
            Console.WriteLine(root.productInfo[0].packing + "======" + root.productInfo[0].Qty);
            Console.WriteLine(root.productInfo[0].Discount[0].Qty + "========" + root.productInfo[0].Discount[0].percentage);
            Console.WriteLine(root.productInfo[0].Discount[1].Qty + "=======" + root.productInfo[0].Discount[1].percentage);
            Console.ReadKey();

4.1运行结果

4.2使用Json.Net序列化

            Student stu=new Student();
            stu.Id = 1;
            stu.Name = "卡卡西";
            stu.English = 85;
            stu.Math = 100;
            string jsonString=JsonConvert.SerializeObject(stu);
            Console.WriteLine(jsonString);
            Console.ReadKey();