(First, let me ask this question: "what do you think HTTP is“You may blurt out without thinking: "HTTP is hypertext transfer protocol, that is, hypertext transfer protocol."The answer is very correct! I must sincerely congratulate you: if you can give this answer, it means that you have at least 50% knowledge reserve related to HTTP and should be regarded as "half an expert".But let's change the dialogue scenario. Suppose it's not me, but an interviewer who asks the question just now?)