JS 桥接模式

class Speed {            // 运动模块
  constructor(x, y) {
    this.x = x
    this.y = y
  }
  run() {  console.log(`运动起来 ${this.x} + ${this.y}`)  }
}

class Color {            // 着色模块
  constructor(cl) {
    this.color = cl
  }
  draw() {  console.log(`绘制颜色 ${this.color}`)  }
}

class Speak {
  constructor(wd) {
    this.word = wd
  }
  say() {  console.log(`说话 ${this.word}`)  }
}

class Ball {                     // 创建球类，可以着色和运动
  constructor(x, y, cl) {
    this.speed = new Speed(x, y)
    this.color = new Color(cl)
  }
  init() {
    this.speed.run()
    this.color.draw()
  }
}

class Man {                    // 人类，可以运动和说话
  constructor(x, y, wd) {
    this.speed = new Speed(x, y)
    this.speak = new Speak(wd)
  }
  init() {
    this.speed.run()
    this.speak.say()
  }
}

const man = new Man(1, 2, 'hehe?')
man.init()                                // 运动起来 1 + 2      说话 hehe?