正在跳转至 https://fynn90.github.io/2021/01/31/JS%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6%E5%92%8C%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F/#%E6%87%92%E6%B8%85%E7%90%86-Lazy-sweeping