winsock控件提交特殊表单的问题multipart/form-data; boundary=---------------------------7d12442eab4

POST /main/main.py HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*
Accept-Language: zh-cn
Content-Type: multipart/form-data; boundary=---------------------------7d59a14171dd6
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: 211.90.118.44
Content-Length: 1012
Connection: Keep-Alive
Cache-Control: no-cacheHTTP/1.1 100 Continue
Server: Microsoft-IIS/5.0
Date: Wed, 26 Oct 2005 18:12:49 GMT-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="display"home
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="pyhp"http://211.90.118.44/main/sms/wsms.jsp
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="__sessionid__"MTE1NDI1MDI4Ng==
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="act"send_sms
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="picnumber"2344
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="wsms_to"13932075641
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="longSms_flag"0
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="sms_context"你好
-----------------------------7d59a14171dd6
Content-Disposition: form-data; name="language_cat"1
-----------------------------7d59a14171dd6--请问这样的表单怎么提交？