404 是您***的回应.根据 HTTP RFC，http://www.ietf.org/rfc/rfc2616.txt,

404 is your best response. According to the HTTP RFC, http://www.ietf.org/rfc/rfc2616.txt,

400 错误请求意味着:

A 400 Bad Request means:

由于语法错误，服务器无法理解请求.

The request could not be understood by the server due to malformed syntax.

然而，404 声明:

服务器未找到任何与请求 URI 匹配的内容.

The server has not found anything matching the Request-URI.

整个 URI 是您的资源标识符，您没有找到与该特定标识符匹配的资源.

The entire URI is your resource identifier, and you're not finding a matching resource for that particular identifier.