类似于HTTP代理的抓包工具，能够处理任意类型的协议，并能够分析他们，修改他们-a similar tool which could handle any protocol and pick up packets on-the-fly, modify them, fuzz some fields and re-inject them on the wire. In other words, some kind of Wireshark with real-time packet modifica

对豆瓣前250的电影进行爬取，得到电影名等信息。(Pick up the top 250 movie and get the movie name and other information.)