如何导入整个three.js核心库？

<script src="path/to/three.js"></script>

<div id="canvas-container"></div>

<script>
  // 创建场景
  var scene = new THREE.Scene();

  // 创建相机
  var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
  camera.position.z = 5;

  // 创建渲染器
  var renderer = new THREE.WebGLRenderer();
  renderer.setSize(window.innerWidth, window.innerHeight);

  // 将渲染结果添加到渲染容器中
  var container = document.getElementById('canvas-container');
  container.appendChild(renderer.domElement);

  // 渲染循环
  function animate() {
    requestAnimationFrame(animate);
    // 执行动画更新操作，例如旋转物体
    renderer.render(scene, camera);
  }
  animate();
</script>