C#(.NET)でJsonの操作はJsonSerializerを使いましょう | DevelopersIO

// Created by default, you can delete this line if you want using System; // For File, FileStream, StreamWriter, StreamReader using System.IO; // For Json Serialization and Deserialization using System.Text.Json; using System.Text.Json.Serialization; // We use List<T> to contain student information objects using System.Collections.Generic; // Define a simple student class with basic parameters and