(At the end of the last lecture, I drew a diagram, which contains various technologies and knowledge points related to http. It can also be said to be the general index of the column. I wonder if you have read it carefully?The left part of the figure shows various protocols related to HTTP, comparing the theory; On the right are various application technologies related to HTTP, which are more inclined to practical applications.I hope this figure can help you clarify various concepts and roles related to HTTP, so that you can understand their position and role in the link in practical work, what roles will be involved in initiating an HTTP request, and how they will participate in the processing of affecting requests. You should "have food on hand, no panic".Because the picture is relatively large, I separate the left and right parts and talk about them separately. Today, I will talk about the correct part, that is, various applications related to HTTP, focusing on the common and important concepts of Internet, browser, web server and so on.)
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