主要是模拟邮件收发客户端的小程序。重点可以帮助读者掌握收发邮件的协议的运用手段以及帮助了解和进一步熟悉JAVA的网络编程-Is to simulate sending and receiving e-mail client applet. Can help the reader grasp the key messages of the protocol transceiver means and to help understand and use more familiar with JAV