……

The clear sentence of "standard free" undoubtedly greatly relieved those who have a heart. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Gain, Zheru's energy in the industry is no longer ordinary, otherwise, in the "downturned Tang" turmoil, it would not have become coveted fat; The intra demonstration platform built in the San Francisco Municipal Auditorium shows the future of the application to the fullest - such an excellent architecture, the attraction is undoubted, but I am afraid of the threshold of authorization.

Originally, it is understandable for developers to charge patent fees, but in the past few decades, large companies led by IBM have built an iron wall, which has really made everyone suffer.

If the rope of patent protection is tightened too tightly, it will become the biggest obstacle to progress -- from a certain point of view, today's Hollywood is not the original development of filmmakers who ran to the western United States in order to avoid Edison's patent network in the eastern United States.

Tang Huan launched it, which is indeed very remarkable, but if you don't have the opportunity to participate, what does it have to do with yourself?

Now that the standard is free of charge, the most direct feeling of everyone is that Tang Huan has this bearing, and he is worthy of the standing ovation in the five minutes just now.

Seeing that everyone in the audience was satisfied, Tang Huan smiled slightly. There is no shortage of smart people in the world, and they are equally confident in the future of the Internet. However, it is estimated that very few people can predict how fierce the competition in Internet technology will be in the next ten years. Therefore, the first step is to use free standards to circle your own World Wide Web territory on the Internet and kill other similar standards.

After pressing the remote control and projecting the computer's video output onto the big screen, Tang Huan turned to the topic and said: "I think one of the places that everyone is most impressed by HTML is the ubiquitous hyperlink, which can directly lead us to the next page." ”

"Is it easy to organize and present information in such a simple but creative way of organizing and presenting information in the process of editing an HTML page?"

"I'm telling you, it's surprisingly easy - just wrap the text you want to hyperlink with the hashand tag, and assign an absolute path or a relative path in the 'href' property." As he spoke, Tang Huan opened a simplest text editor, entered some code with a clear structure, and then saved it as a web page file, and opened it with the browser Polestar.

“so_easy!” Tang Huan shrugged his shoulders and finally concluded.

Among the 7,000 people who attended the meeting, there were not many professionals who had access to technology in advance, and most of them saw such a magical scene for the first time, and they couldn't help but applaud.

"This kind of tag that echoes and matches in pairs is the biggest feature of the HTML language." Tang Huan turned the topic to the entire HTML language.

"As the name hypertext_markup_language - Hypertext Markup Language implies, HTML is a type of markup language derived from a meta-language standard published by ISO in 1986 that defines markup language, the standard_generalized_markup_language Standard Universal Markup Language."

"SGML can do everything, but it's also too complex to be ubiquitous. At the very least, the current personal computer is difficult to handle the heavy task of parsing it. ”

"So, on top of SGML, we developed a subset of about 80 tags, which is what you see today."

"In the pages we see, HTML that provides structural markup is only one of the basic technologies, and if we need to deal with more complex application scenarios, we have to use two other technologies - scripting language and style language - to cooperate. The corresponding solutions we provide are pascal_script and cascading_style_sheets - Cascading Style Sheets, or CSS. ”

"Those who have used the latest version of WordEasy, a spreadsheet software, will definitely be impressed by the powerful macro language pascal_script. Now, there's a new use for this scripting language -- making otherwise static HTML pages dynamic. ”

"For example, if I log in to the community with my own account, I get a welcome prompt on the page that says, 'Hello, Don, what time is it?'" Tang Huan knocked on the code again, and then re-assigned the variables and said, "Now that Bill Gates logs in to the community, the content of the page will change accordingly. ”

Gates, who was sitting in the front row of the audience, smiled and applauded with everyone, and his eyes flashed with an inexplicable light.

"CSS is responsible for centralizing and positioning elements such as colors, fonts, and other aspects related to page beautification. The more complex the page, the more obvious the benefits of CSS and HTML management. ”

"For example, when Christmas arrives and the page needs to be more festive, if you modify the images, text paragraphs, and so on one by one, it will often be a lot of work, and it may be that Christmas is over, and the festive page has not been modified."

"In fact, as long as you are responsible for centrally managing the CSS of these elements, make a plan for normal time and Christmas respectively, and then let HTML modify the reference to CSS, you can easily make a difference without working overtime."

"Taking it a step further, we can even monitor the time with pascal_script and automatically change the reference to the CSS as soon as it's Christmas, without the need for professional maintenance."

"In order to design pleasing web pages that attract views, CSS can be handed over to professional artists, while the code logic for HTML and pascal_script can be handed over to technologists who see only the difference between '0' and '1'."

It has to be said that Tang Huan's comprehensive introduction to the troika needed to build web pages - HTML, as well as pascal_script and CSS, made people who originally felt unfathomable about it suddenly feel close, so that their eyes suddenly opened up.

"It's entirely foreseeable that as hardware specifications and software technology continue to evolve, HTML will continue to enrich itself, and at the same time, the browsers responsible for interpreting and rendering it will further support it."

After the sincere and warm applause, Tang Huan switched the content of the big screen to a schematic diagram, "The web page just mentioned, which is built by HTML, pascal_script and CSS, is handed over to the browser Polestar on the client side to quickly parse, render, execute and render."

"This data is transmitted over the network by the server in response to the user's request using the hypertext_transfer_protocol - Hypertext Transfer Protocol (HTTP), which is very clearly reflected in the universal_resource_locator in the browser's Polestar address bar, the Uniform Resource Locator, or URL."

"This string address used to obtain a web page is roughly composed of 'protocol type://server address: port number/path/ File name', where the protocol type and port number can be omitted, the browser Polestar will default to HTTP, because it also supports FTP, so when using non-HTTP, additional annotations are required, and users in daily use, only need to send the server address, the server will push to the home page, and then all the Internet surfing activities are handed over to the mouse click and the automatic jump of the hyperlink. ”

For Tang Huan's elaboration of this part, non-professional and technical groups such as media reporters have shown strong interest, and the ease of use can simply pull anyone into the Internet, which is really worth mentioning.

IT executives at banks, insurance companies, and large corporations turned their attention to the backstage of the diagram on the big screen early, hoping to find information that would impress them.

Soon, Tang Huan gave an answer in this regard.

"HTTP is a standard protocol for the client to make requests and the server to respond, and the underlying support is the Internet standard protocol TCP/IP, but in fact, other network protocols can also support it. As a result, HTTP is not limited to any hardware platform, is suitable for all network environments, and meets the strict security requirements with an encryption protocol. ”

Next, Tang Huan disclosed more details of the http server for professional and technical personnel.

"ZIS can connect to any SQL database, including EBASE, as long as the corresponding driver is developed. Of course, ZIS also allows pascal_script to run at a higher level of security than browsers, so naturally it has a wide range of features. ”

"I can foresee that the architecture of a solution like ERP will evolve from two layers – client and server, to three layers – client and server, and a middle tier, or even multiple tiers, i.e., more middle tiers. This results in great flexibility, ease of maintenance, and a significant increase in performance by allowing the hardware to focus on the same type of tasks. ”

……

The people who were attracted by this year's Zheru Spring Developer Conference were initially only on the personal computer terminals in the San Francisco Municipal Auditorium, and they were full of praise for the user-friendly and easy to use, but as the technical team led by Tang Huan unfolded the theme of the conference one by one, they realized that - oh my God, this is a very complex and huge project.

The media is even more enthusiastic to shout: Tang has painted a new picture for the application of the Internet, and the economic pull effect of such a great initiative will help the United States to shake off the closely catching up RB in the next ten years It is no exaggeration to say that in the first year of entering the 1990s, Tang Huan pointed out the direction for the development of the Internet in his own way, and unlike the original personal computer halfway to join, this time he became the original pioneer.

When the fog of Internet development is lifted, people of insight will naturally move when they hear the wind, and the entrepreneurial heat wave in Silicon Valley will simply stun people.

How much stake there is, how complex the disputes will be. Freedom and freedom are the genes of the Internet, and they are the main driving force for its development.

Not long after the end of the 1990 Zheru Spring Developer Conference, an entrepreneurial team announced that they would develop a browser to challenge Zheru's Polaris browser.

More far-sighted people analyze, just as personal computers are inseparable from operating systems, the Internet will also be inseparable from browsers, this is a new platform battle, and everyone is almost on the same starting line - the philosophers who have not passed the standard to grasp everyone are just more prepared.

Tang Huan's attitude towards this is very generous and very simple - if he is still overturned under the horse when he has so much initiative, then he has nothing to say, who makes the stupidity hopeless.

However, there are some layouts that still need to be grasped early.

Third-rate enterprises do products, second-rate enterprises do brands, and first-class enterprises do standards.

Of course, competitors can develop browsers to compete with Zheru, but they must follow Tang Huan's standards, otherwise an incompatible hat will be buttoned over and crush you!

In order to firmly grasp this leadership, Tang Huan set out to form two standardization organizations.

The first is the world_wide_web_consortium World Wide Web Consortium, or W3C for short, which is responsible for developing and maintaining standards on the platform and urging application developers and content providers to follow them.

The W3C standard is mandatory and not recommended. In other words, Tang Huan allows the standard to be free, but it must be done according to his rules, if the competitor is deliberately carrying private goods in it, I'm sorry, get out!

It's like in the original time and space, Microsoft saw the prospect of Java, so it added visual_j++ to its own programming tool suite visual_studio, and the performance was so good that it even threatened the orthodox Java, but a lawyer's letter from Sun Microsystems could force Microsoft to give up this effort and compete by launching C#.

Now, Tang Huan is going to ensure the unity of the standards of the same track and the same book under the awe-inspiring righteousness of the free car. This is already his forte, and it can be described as easy to arrange. (To be continued.) )