c++builder 电子邮件编程

在程序中添加windows ip,不需要重新启动计算机-procedure ip adding windows, no need to restart the computer

1-持续CSMA协议下，当一个用户要发送数据时，它首先侦听信道，看是否有其他站点在传送。如果信道忙，就持续等待直到信道空闲时，便将数据送出。若发生冲突，就等待一个随机长的时间，然后重新侦听。 对于这种协议，先考虑当前帧i时的前一帧时i-1，得到前一帧时的最后一帧frame0（相对时间最大的帧）的相对时间dt0，然后再在当前帧时查看有哪些帧的相对时间会小于dt0，这些帧若是发送就会与frame0发生冲突，所以这些帧就进入持续等待状态，这些帧并没有发送。再考虑当前帧余下的帧（dt > dt0），它们中的第一帧侦听到信道处于空闲状态，所以就发送，而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等，且它们又同时侦听到信道空闲时，就会同时发送而导致冲突，冲突发生后的处理方法同上两个协议的一样。 -1- CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, th

使用手机发送段信的源码，包括串口操作和AT指令集。使用vb.net编写。-use the phone to send a letter of the source code, including the serial port operation and AT command set. Use vb.net prepared.

Borland C++ Builder制作有论证的邮件发送程序,同时还增加了附件功能-Borland C Builder has produced proof of mailing procedure, and also increased the attachments

通过Winsock API实现TCP聊天的程序，程序中集成了服务器端和客户端- Realized the procedure through Winsock API which TCP chatted, in the procedure integrated the server end and the customer end

开源SSL协议源码，欢迎下载，但是仅供学习之用-revenue source SSL protocol, welcome to download, but only with learning! !

模拟路由器的小型程序，可以发出arp请求获得mac地址，进而转发数据包-Simulated router small procedures, may issue a mac address arp request, and then forwarding the packet

一个Socket通讯类CRTSock，同过继承他派生新的Socket通讯类，从而可以作为服务端和客户端通讯类，具体例子可以参考Onsock.h和Onsock.cpp。-a Socket Communications CRTSock, with a succession of new derivative He Socket Communications, which can be used as the server and client communications, specific examples and reference Onsock.h Onsock.cpp.

服务器端在本地端口进行坚挺，等待客户机的连接，连接上之后，向服务器端发送数据-Server-side firm in the local port and wait for client connections, after connection to the server-side send data

http通讯协议，实现可以实现文件的上传与下载-http communication protocol, can realize the upload and download files