外观模式(Facade)

为子系统中的一组接口提供统一接口。 Façade 定义了一个更高级别的接口，使子系统更易于使用。

class s1 {
  constructor() {}
  get(name, score) {
    return name == "julong" || score == 100;
  }
}

class s2 {
  constructor() {}
  get(score) {
    return score >= 80;
  }
}

class s3 {
  constructor() {}
  get(score) {
    return score >= 60;
  }
}

class Student {
  constructor(name, score) {
    this.name = name;
    this.score = score;
  }
}
class CheckScore {
  constructor(student) {
    this.name = student.name;
    this.score = student.score;
    this.message = "";
  }
  result() {
    if (new s1().get(this.name, this.score)) {
      this.message = "全球旅游";
    } else if (new s2().get(this.score)) {
      this.message = "挨打50大板";
    } else if (new s3().get(this.score)) {
      this.message = "强制移民去印度";
    } else {
      this.message = "死刑";
    }
    return this;
  }
}

export { Student, CheckScore };

let s01 = new Student("julong", 50);
let s01Check = new CheckScore(s01);
s01Check.result();

#外观模式(Facade)

外观模式(Facade)