ts类

class Person {
    Name: string;
    Age: number;

    sayHello() {
        console.log(`Hello, my name is ${this.Name} and I am ${this.Age} years old.`);
    }
}

let person = new Person();
person.Name = "John";
person.Age = 30;
person.sayHello();

C#类

public class Person 
{
    public string Name { get; set; }
    public int Age { get; set; }

    public void SayHello() 
    {
        Console.WriteLine("Hello, my name is " + Name + " and I am " + Age + " years old.");
    }
}

class Program
{
    static void Main(string[] args)
    {
        Person person = new Person();
        person.Name = "John";
        person.Age = 30;
        person.SayHello();
    }
}