.Net制作的,基于Http协议的支持多线程断点续传的下载客户端

网络的相关知识，网络程序的编写，Socket是连接应用程序与网络驱动程序的桥梁，Socket在应用程序中创建，通过bind与驱动程序建立关系。此后，应用程序送给Socket的数据，由Socket交给驱动程序向网络上发送出去。计算机从网络上收到与该Socket绑定的IP+Port相关的数据后，由驱动程序交给Socket，应用程序便可从该Socket中提取接收到的数据。网络应用程序就是这样通过socket进行数据的发送与接收的。TCP与UDP的工作原理与编写过程，如何在程序中链接库文件。一个字符界面的聊天程序。-network of the knowledge, network program, Socket is a link between the application and network driver bridges, Socket in the application process to create, Driving through bind with the procedures established relations. Since then, Socket applications presented data from the socket to the network driver to send out. Computer network received from the Socket bundled IP Port relevant data, by the driver to Socket, application procedures can Socket from the extraction of data received. Network applications through this is the socket for data transmission and reception. TCP and UDP Principle and the work of preparation, how to process the document link. Characters in a chat interface procedures.

运用随机字符和数字的组合生成图片的验证码。-java- JAVASCRIPT

简单模拟路由器转发的源代码，其中采用了WFQ算法及令牌桶机制！-Simple simulation of a router forwarding source code, which uses WFQ algorithm and the token bucket mechanism!

自动换IP地址，自动获取本地ADSL连接，定时自动拨号，自动缩小到状态栏，拨号日志记录，IP地址记录，可以用来刷IP地址用，刷网站等等。软件很完整。现在发布出来给大家用用，并提供源码下载。-Automatically change IP addresses, automatically get a local ADSL connection, timing automatic dialing, auto-reduced to the status bar, dial-up log records, IP address of record, IP addresses can be used to brush use, brush sites, and more. The software is very complete. Now released for everyone to come out with use, and provide source code to download.

java3D教程的示例程序包含了很多在web上显示3D的例子 (2005-4-5，Java,318KB,下载3次)【向站长举报此文件和某个同类文件可能重复-java3D handbook sample program contains many displayed on the web 3D examples (2005-4-5, Java, 318KB download 3) report to the head of this document and any similar document may repeat

一个校园网的东西 一个校园网的东西-something of a campus network things

程序包是sun公司提出的jxta服务架构中支持java开发平p2p网络程序的类库！-A class library that supports p2p network application development by Java, which belongs to JXTA service architecture by SUN corp.

一个简单的vc下tcp客户端程序 向服务器提出TCP连接的请求，当连接建立后，从服务器的端口接收数据并进行显示，然后断开与服务器的连接-Vc under a simple tcp client TCP connection to the server made the request, when the connection is established, from the server port to receive data and display, and then disconnect the connection with the server

本程序采用JSP+JAVABEAN+SQLSERVER所开发的一个人才招聘网站的开发。是一个实用的系统。对于学习JSP的开发者是一个很好的帮助。-This procedure used JSP+ JAVABEAN+ SQLSERVER developed a talent recruitment website development. Is a practical system. For developers learning JSP is a very good help.

　各个线程任务分配是这样实现的。在开始下载时，文件平均分成若干块进行下载。如第一个线程一开始的任务是从文件的0位置开始下载一直到72908位置处。线程1每次下载一块数据后就要调整任务，如第一次下载了20800字节的数据，那么线程1的任务将改为：20800-72908。如此下去，直到任务为72908-72908时表示线程1完成了当前的下载任务。此时，线程1就分析各个线程的任务，找出任务最为繁忙的一个线程：如线程3：14816-218724。那么线程1就自动去调整任务，拿50%的任务来再次下载。周而复始直到各个线程都完成任务。不过这里有一点需要注意：为了避免重复下载部分数据，在调整任务的时候，起始的文件便移量必须加上接受缓冲器的字节数，因为如前面所举的列子来看。线程1和线程3在平衡负载的时候，线程正在下载数据，如果所剩的数据比接受缓冲器的大小还小，线程1和线程3的部分下载数据将会重复。 　　在调整任务和分析任务的时候，会发现一个问题。就是读取文件数据太过频繁。于是我用了一个数据结构。在下载文件的过程中始终打开配置文件，这样速度提高了很多。在文件下载完毕后关闭文件。-various threads assignment is achieved. At the beginning of the download, the paper divided into a number of pieces of the download. As a thread of a task is to start from the position paper of 0 to start the download has 72,908 locations Department. Thread a download each one will have to adjust the data tasks, such as the first downloaded 20,800 gigabytes of data, then threaded a task will be re :20800- 72908. This situation continues until the mandate of 72908-72908 said threaded a completion of the cu