f = open(filename)data =http://www.mamicode.com/ f.read()f.close()response = HttpResponse(data,mimetype=‘application/octet-stream‘) response[‘Content-Disposition‘] = ‘attachment; filename=%s‘ % filenamereturn response

#coding=utf-8import urllib,time,datetime,urllib2,cookielib,jsonimport time,random,datetimefrom poster.encode import multipart_encodefrom poster.streaminghttp import register_openersdef getData():        obj = {}        obj[‘param‘] = ‘value‘        register_openers()        datagen, headers = multipart_encode(obj)        request = urllib2.Request(‘http://[url]‘, datagen, headers)        result = urllib2.urlopen(request).read()                fl = open(‘test.png‘,‘wb‘)#一定是wb，不然会保存不成功        fl.write(result)        fl.close()      if __name__ == ‘__main__‘:    getData()