卡车-无人机协同配送系统，通过多智能体强化学习(MAPPO)算法优化物流配送效率。系统模拟真实的城市配送场景，其中卡车作为移动补给站，无人机执行最后一公里配送任务。optimized using Multi-Agent Reinforcement Learning (MAPPO) algorithms to enhance logistics delivery efficiency. The system simulates real-world urban delivery scenarios where trucks serve as mobile supply stations, and drones carry out the last-mile delivery tasks