解析邮件附件,该怎么解决
日期：2014-05-17 浏览次数：21197 次
解析邮件附件
我用C#实现pop3邮件接收，现在将附件接收出来，附件是base64编码，但是附件格式我.rar格式，请问，我如何将它解析成.rar格式文件？
下面是接收到的附件
base64PERJVj5hYmNkZWZnaGlqa2xtbjwvRElWPg==------=_NextPart_4C62487E_08E82A70_4ABE4497--------=_NextPart_4C62487E_08E82A70_55DEDAFAContent-Type: application/octet-stream; charset="gbk"; name="pop3mailclient.rar"Content-Disposition: attachment; filename="pop3mailclient.rar"Content-Transfer-Encoding: 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
我用C#实现pop3邮件接收，现在将附件接收出来，附件是base64编码，但是附件格式我.rar格式，请问，我如何将它解析成.rar格式文件？
下面是接收到的附件
base64PERJVj5hYmNkZWZnaGlqa2xtbjwvRElWPg==------=_NextPart_4C62487E_08E82A70_4ABE4497--------=_NextPart_4C62487E_08E82A70_55DEDAFAContent-Type: application/octet-stream; charset="gbk"; name="pop3mailclient.rar"Content-Disposition: attachment; filename="pop3mailclient.rar"Content-Transfer-Encoding: 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