const asyncReadFile = async function () {
  const afile = await readFile('/etc/fstab');
  const bfile = await readFile('/etc/shells');
  console.log(afile.toString());
  console.log(bfile.toString());
};

class People {
  constructor(height, money) {
    this.height = height;
    this.money = money;
  }
  work() {
    console.log('I am working');
  }
  play() {
    console.log('I am playing');
  }
  //info 可以先不用看
  info() {
    console.log('我身高',this.height, '我有',this.money);
  }
}
//----------------特殊舉例-可以先不用理會-------------------
let cMan =new People ('0cm','0元');
//----------------aMan-object---------------------
class aMan extends People {
  swim() {
    console.log('aMan','I am swimming');
  }
};
//----------------new-aMan------------------------
let poolMan = new aMan('165cm', '5億');
//----------------bMan-object---------------------
class bMan extends People {
  constructor(height, money, face) {
    super(height, money);
    this.face = face;
  }
  swim() {
    console.log('bMan','I am swimming');
  }
  talk() {
    console.log('bMan','I am talking');
  }
  //info 可以先不用看
  info() {
    console.log('我身高有',this.height, '我錢有',this.money,'我臉很',this.face);
  }
};
//----------------new-bMan------------------------
let richMan = new bMan('195cm','500億','帥');