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() {
      this.isCollected = !this.isCollected;
      console.log("收藏状态：", this.isCollected ? "已收藏" : "未收藏");
    },
  },
});