feat: add Vue2 exercises for dynamic styles, lifecycle methods, component communication, and course management dashboard

- Implement dynamic styles and event handling in Vue2 with a card component.
- Create lifecycle methods exercise to simulate async data loading and instance destruction.
- Develop a component communication exercise with props, events, and slots.
- Build a comprehensive course management dashboard with filtering, statistics, and component interactions.
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charlie
2026-03-23 10:09:29 +08:00
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# 练习 1Vue 实例和数据
## 目标
学会写一个最基础的 Vue2 实例,并让页面内容跟着数据变化。
## 你要练什么
- `new Vue()`
- `el`
- `data`
- `methods`
- 模板插值 `{{ }}`
## 任务
请基于页面结构完成以下操作:
- 显示课程标题和章节数量
- 点击按钮后让学习人数加 1
- 在控制台输出当前学习人数
## 文件
- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/01-vue-instance-and-data/starter.html)
- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/01-vue-instance-and-data/starter.js)
- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/01-vue-instance-and-data/answer.html)
- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/07-vue2/01-vue-instance-and-data/answer.js)