此Typescript类如何与此接口兼容

interface MyInterface {
  name: string;
  age: number;
  sayHello(): void;
}

class MyClass implements MyInterface {
  name: string;
  age: number;

  constructor(name: string, age: number) {
    this.name = name;
    this.age = age;
  }

  sayHello() {
    console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`);
  }
}

const myObj: MyInterface = new MyClass("John", 25);
myObj.sayHello(); // Output: Hello, my name is John and I'm 25 years old.