企业出行服务系统双十一促销活动

# 示例代码：使用Redis缓存热门出行路线信息
import redis

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

def get_route_info(route_id):
    info = r.get(f'route:{route_id}')
    if info is None:
        info = fetch_from_database(route_id)  # 假设这是从数据库获取数据的函数
        r.setex(f'route:{route_id}', 3600, info)  # 缓存1小时
    return info

// 示例代码：前端页面加载优化
// 使用懒加载技术延迟加载非关键资源
document.addEventListener("DOMContentLoaded", function() {
    const lazyImages = [].slice.call(document.querySelectorAll("img.lazy"));
    if ("IntersectionObserver" in window) {
        let lazyImageObserver = new IntersectionObserver(function(entries, observer) {
            entries.forEach(function(entry) {
                if (entry.isIntersecting) {
                    let lazyImage = entry.target;
                    lazyImage.src = lazyImage.dataset.src;
                    lazyImage.classList.remove("lazy");
                    lazyImageObserver.unobserve(lazyImage);
                }
            });
        });
        lazyImages.forEach(function(lazyImage) {
            lazyImageObserver.observe(lazyImage);
        });
    }
});