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我已成功提出请求并获得以以下开头的源页面:

HTTP/1.1 200 OK
Date: Tue, 30 Jul 2013 02:11:13 GMT
RallyRequestID: qs-app-061t71gj9w60m7graiwwkcihbo3.qs-app-061391284
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Type: image/jpeg;charset=UTF-8
Content-Disposition: attachment; filename=iteration_burndown.jpg
Set-Cookie: XSESSIONID=o44i037e364313anetibup7ux;Path=/analytics;HttpOnly
Vary: Accept-Encoding
P3P: CP="NON DSP COR CURa PSAa PSDa OUR NOR BUS PUR COM NAV STA"
Cache-Control: no-cache,no-store,max-age=0,must-revalidate
Transfer-Encoding: chunked

其余部分是 jpeg 二进制数据

python 或 C++ 中是否有一个退出的库,当给定整个文件的长度和标题的长度时,它可以把 jpeg 拿出来吗?

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