一些很有用的类，来支持发送邮件的，你自己可以学习下 网络不错的代码，-Some very useful class, send mail to support, you can learn well under the network code, huh, huh

简单发送邮件！通过网络来发送邮件，大家可以一起学习一下！用vc编绎过的-Simply send a message! Through the network to send mail, we can all learn about! Yi had compiled with vc