Then we illustrate the implementation of two functional agents , the authentication agent and the mail - handling agent , and demonstrate the communication between the principal part and the modules 之后,还分别描述了两个功能代理(用户认证代理及邮件处理代理)的具体实现技术,介绍了代理平台主体与它们进行进程间通信的手段和通信过程。