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.
2026-03-23 10:09:29 +08:00
parent 00d3c9e4c6
commit 3435848495
48 changed files with 1705 additions and 48 deletions
--- a/07-vue2/06-class-style-and-event/answer.html
+++ b/07-vue2/06-class-style-and-event/answer.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>动态类名、样式和事件</title>
+    <style>
+      body { margin: 0; padding: 32px; font-family: "PingFang SC", sans-serif; background: #f4f8fb; }
+      .panel { max-width: 760px; margin: 0 auto; }
+      .card { padding: 24px; border-radius: 18px; background: #fff; border: 1px solid #d8e4f3; cursor: pointer; transition: all .2s ease; }
+      .card.active { border-color: #2d6cdf; background: #eef4ff; }
+      .progress-track { height: 12px; margin-top: 16px; border-radius: 999px; background: #e6edf8; overflow: hidden; }
+      .progress-bar { height: 100%; background: linear-gradient(90deg, #2d6cdf, #58a2ff); }
+    </style>
+  </head>
+  <body>
+    <section id="app" class="panel">
+      <article class="card" :class="{ active: isActive }" @click="toggleCard">
+        <h1>{{ title }}</h1>
+        <p>{{ isActive ? "当前卡片已激活" : "点击卡片激活它" }}</p>
+        <div class="progress-track">
+          <div class="progress-bar" :style="{ width: progress + '%' }"></div>
+        </div>
+        <p>当前进度：{{ progress }}%</p>
+      </article>
+    </section>
+
+    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
+    <script src="./answer.js"></script>
+  </body>
+</html>