This solution uses Python to automate the monitoring of secondhand trading platforms, addressing the real-time challenges faced by tech enthusiasts when trying to purchase popular devices. By writing automated scripts to replace manual refreshes, it enables real-time monitoring and rapid alerts for products with specific keywords. Suitable for developers and tech enthusiasts with basic Python programming skills who want to improve the efficiency of secondhand shopping, its core applications include automatic keyword filtering, price fluctuation tracking, and alerts for sudden purchases.