Three.js -未捕获ReferenceError:未定义OBJLoader

// 引入Three.js库和OBJLoader模块
import * as THREE from 'three';
import { OBJLoader } from 'three/examples/jsm/loaders/OBJLoader';

// 创建场景、相机和渲染器
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 创建光源
const light = new THREE.PointLight(0xffffff, 1, 100);
light.position.set(0, 0, 10);
scene.add(light);

// 创建OBJLoader实例
const objLoader = new OBJLoader();

// 加载OBJ模型
objLoader.load(
  'path/to/your/model.obj',
  (object) => {
    // 加载成功后的回调函数
    scene.add(object);
  },
  (xhr) => {
    // 加载过程中的回调函数
    console.log((xhr.loaded / xhr.total) * 100 + '% loaded');
  },
  (error) => {
    // 加载失败后的回调函数
    console.error('An error happened', error);
  }
);

// 渲染场景
function animate() {
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}
animate();