数据可视化协同开发 秒杀

// 使用虚拟滚动组件展示大量数据
import VirtualScroll from 'virtual-scroll-component';

const data = Array.from({ length: 10000 }, (_, i) => ({ id: i, name: `Item ${i}` }));

<VirtualScroll
  items={data}
  itemHeight={30}
  renderItem={({ item }) => (
    <div style={{ height: '30px', borderBottom: '1px solid #ccc' }}>
      {item.name}
    </div>
  )}
/>

# 使用Redis缓存热门商品数据
import redis
import json

r = redis.Redis(host='localhost', port=6379, db=0)

def get_hot_items():
    hot_items = r.get('hot_items')
    if hot_items is None:
        # 模拟从数据库获取数据
        hot_items = fetch_from_db()
        r.setex('hot_items', 60, json.dumps(hot_items))  # 缓存60秒
    else:
        hot_items = json.loads(hot_items)
    return hot_items

def fetch_from_db():
    # 实际实现中应从数据库获取数据
    return [{"id": i, "name": f"Hot Item {i}"} for i in range(10)]