100：Continue
101：Switching Protocols
200：OK
201：Created
202：Accepted
203：Non-Authoritative Information
204：No Content
205：Reset Content
206：Partial Content
300：Multiple Choices
301：Moved Permanently
302：Found
303：See Other
304 ：Not Modified
305：Use Proxy
306：
307：Temporary Redirect
400：Bad Request
401：Unauthorized
402：Payment Required
403：Forbidden
404：Not Found
405：Method Not Allowed
406：Not Acceptable
407：Proxy Authentication Required
408：Request Timeout
409：Conflict
410：Gone
500：Internet Server Error
501：Not Implemented
502：Bad Gateway
503：Service Unavailable
504：Gateway Timeout
505：HTTP Version Not Supported