feat: 更新培训班图片为tran_4.jpg

src/assets/data.js

@@ -62,7 +62,7 @@ export default [
   {
     activeIndex: 1,
     id: '202504',
-    imgUri: '/images/train_3.png',
+    imgUri: '/images/train_4.jpg',
     title: '“人工智能通识应用”技能培训班，钜惠来袭580元！',
     time: '详细见培训通知',
     count: 100,