读书记录

    static bool AreReferenceEquals<T>(T first, T second) where T : class
    {
        return first == second;
     }

    public static void Main(string[] args)
    {
        string name = "Json";
        string intro1 = "My name is " + name;
        string intro2 = "My name is " + name;

        Console.WriteLine(intro1 == intro2);
        Console.WriteLine(AreReferenceEquals(intro1,intro2));
        Console.ReadKey();
     }