脚本上传，返回成功但是看不到文件（手动上传没问题）

很简单的测试脚本

import pycurl

c = pycurl.Curl()
c.setopt(c.URL, 'http://10.251.110.38:8000')

c.setopt(c.HTTPPOST, [
('test.png', (
# upload the contents of this file
c.FORM_FILE, __file__,
)),
])

c.perform()
c.close()

返回
`{"destination":"upload","success":true}`