用多线程解决生产者消费者问题，每当生产者生产物品，存入仓库，消费者从仓库消费，当仓库满时候，停止生产，仓库为空时，消费者停止消费-Producers and consumers with multiple threads to solve the problem, when producers produce goods into the warehouse, consumer spending from the warehouse when the warehouse is full time