您可以使用NamedTemporaryFile：
from django.core.files.temp import NamedTemporaryFile
def send_file(request):
newfile = NamedTemporaryFile(suffix='.txt')
# save your data to newfile.name
wrapper = FileWrapper(newfile)
response = HttpResponse(wrapper, content_type=mime_type)
response['Content-Disposition'] = 'attachment; filename=%s' % os.path.basename(modelfile.name)
response['Content-Length'] = os.path.getsize(modelfile.name)
return response
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