Bags are typically created by a tool like rosbag They store the serialized message data in a file as it is received http://pr.willowgarage.com/ 这里可以下载bag 使用bag文件作为静态输入的时候,要考虑bag和当前电脑的时间不一致的问题 参考了这篇博客关于时间问题的设置 http://blog.csdn.net/akunainiannian/artic