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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------=_NextPart_4C62487E_08E82A70_55DEDAFA--