{

  "ClassNo": "",

  "ClassDesc": "ASP.NET Core 101",

  "Students": [

    {

      "name": "liuxh",

      "age": ""

    },

    {

      "name": "linhj",

      "age": ""

    },

    {

      "name": "liuxy",

      "age": ""

    },

    {

      "name": "liuss",

      "age": ""

    }

  ]

}

             var builder = new ConfigurationBuilder().AddJsonFile("Class.json");

             var configuration = builder.Build();

             Console.WriteLine($"ClassNo:{configuration["ClassNo"]}");

             Console.WriteLine($"ClassDesc:{configuration["ClassDesc"]}");

             Console.WriteLine("Student：");

             Console.Write(configuration["Students:0:name"] + "：");//Student是数组，读取的方式是数组名：下标：key

             Console.WriteLine(configuration["Students:0:age"]);

             Console.ReadKey();