本例实现了发送带附件的电子邮件的功能！其中不仅涉及SMTP协议的内容，还涉及到文件编解码和算法选择！-realized send an attachment in e-mail function! SMTP which involves not only the content of the agreement, but also to the file and codec algorithm choice!

不错的asn.1 编解码程序，可广泛用于网络通信中，已通过测试-good ASN.1 codec procedures, which can be widely used in network communications, has been tested

This application allows any 2 persons on the LAN/Intranet (possibly Internet too) to have video conference. There are several video conference applications existing today. Each has its own performance enhancement techniques. The major problem in vide

BCH编解码的实现，（31，21），完整版 (BCH codec to achieve)