new Vue({
  el: "#app",
  data: {
    courseTitle: "Vue2 模板语法",
    teacher: "李老师",
    coverUrl: "https://picsum.photos/800/320?random=21",
    courseLink: "https://cn.vuejs.org/",
    isCollected: false,
  },
  methods: {
    toggleCollect() {
      // 任务：
      // 1. 切换 isCollected
      // 2. 在控制台输出最新收藏状态
      this.isCollected = !this.isCollected
      console.log(this.isCollected);

    },
  },
});