pop3高级程序开发是一个能够从pop3服务器中检查所有邮件，并且可以查看邮件内容，也可以删除邮件但是没有实现附件的接收，使用时需要设定服务器地址以及用户名和密码-pop3 senior program is a development from pop3 server check all mail, and can check mail, mail can be deleted but did not achieve the annex to receive, use need to set