实现wap中url返回上级的功能

一个可以检测网络连接状况并能查询当日各大城市的天气状况的程式-can detect an Internet connection and check the date of the major cities in weather conditions formula

一个组播接收类， 一个组播接收类。-Category to receive a multicast, a multicast receiver category.

捕获数据包-Packet capture

用vc编写的典型端口扫描程序，提供用户输入ip地址，端口号进行扫描-vc prepared with the typical port scanning procedures, and providing user input ip address, port scanning

java新手编的简单聊天小程序用UDP写的，对javanet包中最基本的类的基本应用-series of simple procedures for small chat with UDP written in the right javanet basic package of basic applications

ftp多线程断点续传，带有xp 的theme-ftp multithreaded HTTP, with the theme xp

功能齐全的网上图书超市,机不可失,失不再来-Full-featured online book store, missed, missing no longer to

本程序为一断点续传文件程序的客户端程序. 采用了多线程技术,速度明显高于同类软件.- This procedure is a break point continues passes on the document procedure the customer end procedure Used the multi-thread technology, the speed has obviously been higher than similar software

测试snmp++各种操作，包括get、set、getnext、trap等，非常实用！-Test snmp++ Various operations, including get, set, getnext, trap and so on, very useful!

p-持续CSMA协议下，一个用户在发送之前，先侦听信道，若是空闲，就以概率p发送出去，而以q =1-p的概率推迟到下一帧时。如果下一帧时仍是空闲，便再次以概率p发送而以q推迟到再下一帧时。直到发送成功或另外一用户开始发送时为止。若一开始就侦听到信道忙，它就等到下一帧时，然后再开始上述过程。若发生冲突，这等待一随机时间后重新开始。本实验中取q值为0.5。求的是0.5-持续CSMA。 -p-persistent CSMA agreement, a user before sending the first interception channel, if idle, with probability p sent, and to q = 1-p probability postponed to the next frames. If the next frame was still idle, they again sent with probability p and q to further postponed to the next frames. Until this a success or other users at the beginning of this date. If an interception at the start of the busy channel, it will wait till the next frames, and then begin the process. If conflict breaks out, waiting for a random period of time after the re-start. The experiments take q value of 0.5. For the 0.5-sustained CSMA.