OutOfRangeError(参见上面的回溯):FIFOQueue'_0_batch / fifo_queue'已关闭且元素不足(请求560,当前大小为0) [[Node:batch = QueueDequeueManyV2 [component_types = [DT_UINT8,DT_INT32],timeout_ms = -1,_device =“/ job:localhost / replica:0 / task:0 / cpu:0”](batch / fifo_queue,batch / n )]]