In today's society, our study and work are inseparable from the Internet. In the world of huge and diverse information, we can only keep up with the development trend of the times through continuous learning. When we use and obtain the information we need through mobile phones or computers, it is not difficult to find such a strange phenomenon and get particularly angry. When we are brushing the web page and browsing information, the screen will jump out: 404, not found. Such a crazy message.
But do you know why it's 404, not any other number? Let's go into the programmer's world and have a look. First of all, in the history of the development of computers, after a long time of baptism and precipitation, it is now developed and fast network communication. In the beginning of the birth and start of the computer, is not our present grand occasion, they need complex procedures and operations to transmit and receive information. Although the current process is also in our ordinary people's eyes is also very difficult.
However, automation and technology are not as advanced as they are today, so they will have special personnel to build a room similar to the base station signal. Coincidentally, the network management system similar to ours appeared. He is responsible for the transfer and transmission of information. The room where he is located is the number marked 404. So if people need to send and receive their messages, they go through their hands. However, if there is a problem with him, the network will be paralyzed. So 404 is here.
当然在我们的网页发生错误时，并不是只有404这样的数字代码，还有403 Forbidden表示的是：服务器充分理解您客户端的请求，但还是拒绝执行。414 Request-URI Too Large：您请求的URI太长了 （URI通常为网址），服务器懒得读。并作拒绝处理。500 Internal Server Error您所请求的服务器内部错误，如果刷新没用，那就对不住了。504 Gateway Time-out：网页请求超时。怀疑网站流量太大，服务器撑不住了。
Of course, when there is an error on our web page, there is not only 404 code, but 403 Forbidden means that the server fully understands your client's request, but still refuses to execute it. 414 request URI too large: the URI you requested is too long (usually a URL), so the server doesn't bother to read it. And refuse. 500 internal server error the internal error of the server you requested. If the refresh is useless, it will not work. 504 gateway time out: the web request timed out. Suspected that the website traffic is too large, the server can not support.