修复搜索分页功能

- 后端搜索API支持offset参数，返回总数用于分页
- 前端传递offset参数实现正确分页

routes/articles.py

@@ -31,16 +31,20 @@ def search_articles():
     """搜索文章"""
     keyword = request.args.get('q', '')
     category = request.args.get('category')
-    limit = request.args.get('limit', type=int)  # 支持limit参数
+    limit = request.args.get('limit', type=int)
+    offset = request.args.get('offset', 0, type=int)
     
     if not keyword:
         return jsonify({'error': '请提供搜索关键词'}), 400
     
-    articles = db.search_articles(keyword, category)
+    all_articles = db.search_articles(keyword, category)
+    total_count = len(all_articles)
     
-    # 如果有limit参数，截取
+    # 分页截取
     if limit:
-        articles = articles[:limit]
+        articles = all_articles[offset:offset + limit]
+    else:
+        articles = all_articles
     
     # 解析JSON字段
     for article in articles:
@@ -50,7 +54,7 @@ def search_articles():
     return jsonify({
         'success': True,
         'articles': articles,
-        'count': len(articles)
+        'count': total_count  # 返回总数，用于分页
     })
 
 @bp.route('/<int:article_id>', methods=['GET'])

static/js/library.js

@@ -49,10 +49,10 @@ async function loadArticles() {
     });
     
     if (keyword) {
-        // 搜索时也传递 limit 参数
+        // 搜索时也传递 limit 和 offset 参数
         let searchUrl = `${API_BASE}/api/articles/search?q=${encodeURIComponent(keyword)}`;
         if (category) searchUrl += `&category=${encodeURIComponent(category)}`;
-        searchUrl += `&limit=${pageSize}`;
+        searchUrl += `&limit=${pageSize}&offset=${(currentPage - 1) * pageSize}`;
         
         const response = await fetch(searchUrl);
         const data = await response.json();