如何在Node类中创建doctor类型的对象？

const util = require('util');

class Doctor {
  constructor(name, specialization) {
    this.name = name;
    this.specialization = specialization;
  }

  diagnose() {
    console.log('Performing diagnosis...');
    // 实现诊断逻辑
  }
}

const doctor = new Doctor('Dr. Smith', 'Cardiology');

console.log(doctor.name); // 输出：Dr. Smith
console.log(doctor.specialization); // 输出：Cardiology
doctor.diagnose(); // 输出：Performing diagnosis...