如何在C＃中实现赋值运算符或什么是替代方法？

Question

I am looking to find a good way to skip copy constructor approach in C# and looking for a way to do same thing with assignment in code below:

class Person
{
    string Name;
    int Age;
    public Person() { }
    //public Person(Person p)//copy contructor
    //{
    //    this.Name = p.Name;
    //    this.Age = p.Age;
    //}
    public Person(string name ,int age)
    {
        this.Name = name;
        this.Age = age;
    }
    public void Set(string name,int age)
    {
        this.Name = name;
        this.Age = age;
    }
    public void Get()
    {
        Console.WriteLine("{0}  {1}",Name,Age);
    }
};

        Person person= new Person("Arif",40);
        person.Get();
        //Person person2 = new Person(person);//skip copy
        Person person2 = new Person();
        person2 = person;//use assignment
        person2.Get();
        person.Set("Mahmood",44);
        person.Get();
        person2.Get();

Output I see in case of copy when copy constructor is implemented is desired one given below

Arif  40
Arif  40
Mahmood  44
Arif  40

But output which I see for assignment is wrong one given below

Arif  40
Arif  40
Mahmood  44
Mahmood  44

How to get right output?

Answer 1

If we go solely by the example you provided, you need Person to be a 'structure'. They are assigned by copying a value rather than refference.

Answer 2

You cannot override the operator "=" in C# See here in MSDN

=, ., ?:, ??, ->, =>, f(x), as, checked, unchecked, default, delegate, is, new, sizeof, typeof =======> These operators cannot be overloaded

Moreover, assignments that deny the normal behaviour are confusing

person1 = person2; //Your Person class
county1 = country2; // Some other class

Both are instances of classes (Person & Country) and therefore referenced. Why does Person behave other than Country?!?

The copy constructor is the option to go here if you are using classes. A way to use the assignment operator is to use non-referenced types like primitives or a struct. However, a struct should not have functions! That's what classes are for.