Django下载中文名文件：
from django.utils.http import urlquote
from django.http import HttpResponse
content = export.export_to_xls()
response = HttpResponse()
response[\'Content-Type\'] = \'application/octet-stream\'
title = \'商品管理.xls\'
response[\'Content-Disposition\'] = \'attachment;filename="%s"\' % (urlquote(title))
content.save(response)
return response