????1.?????????
????????????????????????????????????HTTP POST?????а???????????????????????POST????????????л??
?????????????????????????????HTTP?????????
????POST /cgi-bin/wxpush? msg_signature=477715d11cdb4164915debcba66cb864d751f3e6&timestamp=1409659813&nonce=1372623149 HTTP/1.1
????Host: qy.weixin.qq.com
??????POST?????л??????

??????????????????????????????????????????????δ?????????????????????????????????? ?????????????? ?й???????????????????????????????????????????????????????????????????????????????????????????????????????????
????2.?????????
?????ο????????????????
??????????
????<xml>
????<ToUserName><![CDATA[{0}]]></ToUserName>
????<FromUserName><![CDATA[{1}]]></FromUserName>
????<CreateTime>{2}</CreateTime>
????<MsgType><![CDATA[text]]></MsgType>
????<Content><![CDATA[{3}]]></Content>
????</xml>
?????????
????<xml>
????<ToUserName><![CDATA[{0}]]></ToUserName>
????<FromUserName><![CDATA[{1}]]></FromUserName>
????<CreateTime>{2}</CreateTime>
????<MsgType><![CDATA[image]]></MsgType>
????<Image>
????<MediaId><![CDATA[{3}]]></MediaId>
????</Image>
????</xml>
?????????????????????????????????????????????ɡ?
????responseContent = string.Format(ReplyType.Message_Text??
????FromUserName.InnerText??
????ToUserName.InnerText??
????DateTime.Now.Ticks??
????String.IsNullOrEmpty(reply)?"Sorry??I can not follow you." :reply);