Modern people's life has become more and more inseparable from the Internet. The Internet from the chat room in the chat room, the irrigation of the water in the size of the tiles to the land of the garbage, the red fire of the instant messaging tool software, and the new year, the network school is changing, The network is incorporated in our lives. After all kinds of online bubbles disappeared, they brought more rational thinking, bringing a new landscape on the Internet. We are welcoming a new network of new networks.
I feel? Our language has increased many fresh blood due to the network. Our communication is more convenient because of the network, and our knowledge is updated due to the network, and it is not known to have several times ... Exaggerated, there have been more and more people have strong dependence on the network. If there is no network, they will not know how to live!
The network is a tool. It can also be said that the network is like "ocean", it is "the ocean of knowledge", which is another important and convenient way to achieve knowledge in modern people. But these knowledge is objective, only the person who has mastered the golden key to open this knowledge treasure can fully enjoy the happiness to us. In other words, if you take the initiative to get these knowledge in a valid method, for the middle school students, it should be more important than the content of the network itself. This topic will combine the author's online life experience, and to discuss this skill and method with the students.
First, master the necessary "search" skills is an important means to obtain information
Friends entered into the network, mostly like a headless flies, in the network of this boundless virtual space. This kind of "watching the net" may be excited because of a card-moving website, or it may feel a long time for a long time to stay busy. However, this is a hurdle that beginners must pass. If you can master the correct search skills, go online with a certain question and questions, and the results after accessing the network will definitely be different.
Know the search engine
What is search engine? How did it work? Let us start from the history of search engines. Before 1990, no one can search the Internet. The ancestors of all search engines are Archie invented by Montreal McGill University Student Alan Emtage, Peter Deutsch, Bill Wheela in 1990. Later, the programmer has developed a "Robot" program called "Spider" (robot), which automatically retrieves information on the network with the unacceptable speed of humans. This behavior is like a spider climbed from this huge information on the Internet, so the Spider program is here. The world's first Spider program is Mit Matthew Gray World Wide Web Wanderer for tracking the development of the Internet. Just starting it only to count the number of servers on the Internet, and then F and development are also able to capture the URL (URL).
With the rapid development of the Internet, it is more difficult to retrieve all new web pages. Therefore, on the basis of Wandere, some programmers have improved traditional Spider program work. It is idea that since all pages may have links to other websites, then from a website, track all links on all web pages, it is possible to retrieve the entire Internet.
Summary: The search engine is a set of information retrieval systems in the WWW network environment. It usually has two different working methods: one is a classified directory type, collecting resources in the Internet, divided into different directories different from the type of resources provided, and then classifying again, people If you want to find the information you want, you can enter the destination by entering the destination, find the information you want; the other is based on keyword (keyword), this way users can use The logical combination is entered into various keywords. The search engine computer finds the address of the user's resources according to these keywords, and then feeds to the user to all URLs of this keyword information based on certain rules and links to these URLs. Search engine is actually a website, but the site specializes in providing information "search" service, which uses unique programs to classify all information on the Internet to help people find them in the ocean of the Haozihai information. information. As the Internet information grows according to geometric grade, these search engines use their internal spider programs to automatically search for the beginning of each page of the website, and put all the words on each page to all the words in the hyperlink into a database for users to come Inquire.
A search engine is roughly consisting of three parts. The first part is a searcher, that is, the SPIDER program mentioned above. It regularly climbed to various websites, grabbed the webpage, and climbed on the top of the spider, continuously grabbing the web page. The second part is an indexer that analyzes the spider program to analyze, and the index is based on the keyword sentence and stored in the server's database. The third part is a user-oriented search device that receives the query string submitted by the user, queries in the index database and feeds the result to the user.
Therefore, it is precise to say that when we use the search engine to search information, it is not really searching online, but in retrieving the huge database that is automatically established by the spider program. Since the automatic update cycle of the database of major search engines is different, it is possible to choose the right search engine from a few days to several weeks, so it is especially important. At the same time, sometimes it is impossible to open the web page with the search engine that cannot be opened, understanding its working principle, this will not be very surprised.
2. Select the appropriate search engine
Although there are a large number of search engines on the Internet to choose from, the search efficiency is not much satisfactory. In contrast, the famous verses of the "Qingyu case" in the abandoned "Qing Yushu" "Baidu", "Baidu", "Baidu", as well as the "Baidu" and Simplified Chinese Google should be the first choice. Among them, Baidu (www.baidu.com) provides a "keyword" search mode and is very characteristic in this regard. Google can not only support "keyword" search web search methods, but also a model of classified directory-based search.
3. Search engine skills
Don't think that there is a search engine to search everything, how to use the search engine correctly is a knowledge. At present, the famous search engine Baidu is carrying out the game "HTTP: //game.baidu.com/index.php), you only need to spend a few minutes a day, using search engines to answer 5 topics You can learn from many useful search skills, and have the opportunity to win huge prizes such as handheld, digital cameras, mobile phones, why not? Let's talk about some methods and techniques in using Baidu search engine.
We use search engines, most of the cases use some keywords to search for search engines. Therefore, one of the techniques of searching is a reasonable selection of keywords. What is "keyword"? Actually, you entered the text in the search engine search box, that is, what you want to search for the search engine. Don't think that the keyword is three or two words called "words", sometimes use a sentence or a phrase as a keyword to receive the effect. Because the same vocabulary can be used in many different occasions, only one or several words searched, will definitely be a wing, such search results have no effect. In addition to the length of keyword, it is also very important to select keywords. For the same search needs, two different keyword search strategies may get the result of a variability. For example: there is such a problem: Inner Mongolia Xilin Gol League Sunnet, the right flag of 1985 unearthed "_________" is the largest dinosaur fossil skeleton found in China. After the frame is 22.4 meters, the support is 7 meters, and the head is 12 meters high. If you are required to find the answer after searching online, what kind of keywords do you prepare? Is it "Inner Mongolia" or "Dinosaur Fossil", or use these two keywords simultaneously? No matter which type of scheme you use, you will have thousands of results! However, if you can seize the phrase "the biggest dinosaur fossil skeleton found in China", if you search for keywords, you only get 9 results on Baidu and Yahoo's search engines! The answer to finding this question is of course like it. Second, for the search you have searched, if you can't open it, 80% is that the web page has been deleted from the webmaster. What is more difficult to accept is that the search engine is briefly introduced to this page, found that the page is the result of finding it hard, is there really no way? of course not. If you choose Baidu search engine for search, you can see that there are two super connections for "Web Snapshot" and "Web Page Preview" after each search result. In this case, directly open the page may not be opened, but click "Web Snapshot" but you can see the snapshot of the page. Because the web snapshot saves the previous information, the web snapshot is not only very fast download, but the search items are indicated in different colors, and the title information indicates its archive time date and reminds the user this is just archive information. Web snapshots not only allow you to see content on the webpage that does not exist, there is still a lot of benefits to using web snapshots. Because the first part of the snapshot page has a pages related to keywords, directly point to the important content you care about in this page. At the same time, all keywords in the page are distinguished with different colors. Is it more convenient to use their eyes after opening the page directly, especially more content, sometimes more content, sometimes you feel these The keyword is in the game with you "catching hide and seek".
In addition, use multiple keywords, use subtraction search - contain A but does not include B keywords, parallel search - including A or include B, and inquiries with advanced search techniques such as queries, is also an effective way to improve search levels. For specific usage, you can go to http://www.baidu.com/search/jiqiao.html to see "Baidu Search Help". It is particularly pointed out here: Baidu is indeed a very good search engine. When the keyword you choose can't find the results you want, it is probably that the keyword is checked. How to do? Need to re-select the keyword, in most cases, Baidu has understood what you mean, look! At this page, Baidu has already selected several sets of keywords, using them to try keyword search? This is the search.
In most cases, you can complete the needs of daily acquisition knowledge, but in some special occasions, such as: Want to know our "A Zi" editor's popularity in the "middle school student computer" website, then, Just do search on a website (www.yesnew.com). Some websites provide this feature, but most websites do not have the functions of such a search. How to do? Still use "Baidu" to get it. Baidu supports searching in the website, at this time, just enter the keyword in the format of "Keyword Site: URL or Domain" in its search input box, then click the "Start Search" button. For example: Use "A Zi Site: www.yesnew.com" to get the frequency of "A Zi" appears in the site; use "Intel Site: com.cn" to "com.cn" in all domain names "Search and" Intel "in the end of the website. It should be noted that: "Site:" does not have an "http: //" prefix or "/" suffix, the website channel is only limited to the "channel name. Domain name" mode, cannot be a "domain name / channel name" mode. 4. Shuiyu Delica Search Method and Tips
As mentioned earlier, due to the working principle of the search engine, it is generally impossible to use the search engine to search for the latest recent information. Moreover, after all, it is a SPIDER program written in a certain algorithm to the online search result, which is inevitably lost to the online large amount of information. The database established by each search engine is not great. In other words, if you don't search for your own information with a search engine, you can try another search engine and try again. In addition, I have summed up a set of search skills of "Shui" in the long-term search process. Dare to enjoy exclusive, now introduce it, share it with you.
First-class website should also be first class for web names. Although these things seem to have nothing to do with the user. Everyone knows that "Hong En Online" is a famous website to carry out computer popularization education, its "computer paradise" medium (http://www.hongen.com/pc/index.htm) is specially for beginner computer The classmates are open. Live the use tutorials and operational skills of various software written in experts. If you have a common English word or abbreviation (OS: operating system; OA: office automation; Tools: Tool; Program: programming; newer: beginner; homepage: web production, etc.), you can use it according to URL (such as: Office software related tutorial: http://www.hongen.com/pc/oa/index.htm), infer possible URLs of other columns ("OS" in this address into Corresponding words can be). For example, some websites have a web page in some websites, but there is no hyperlink to the page or other page, or put the link in a relatively hidden location, want to find and open these pages is comparison difficult. But if we are good at analyzing and discovering the naming character and rules of its web name, you can fly your hub, from the point to the face, find more information useful for yourself online. These regularities generally do not use English words, Chinese pinyin or abbreviations, numbers, and the number of issues of the publication of the publication (surface). For example: Each base page address in the antenna network (www.yesky.com) has almost a digital string representing the date, such as: http://www.yesky.com/softchannel/72357786532446208/20030430/1666528.SHTML What is the second number string of this address? Oh, of course, it means that the page is uploaded on April 30, 2003. Another example is: http://media.ccidnet.com/media/cce/515/03301.htm is a web page in CCID, and analyzes the composition of its address is also very interesting. "Media.ccidnet.com/media" said "CCID Media", CCE is the "China Computer Education News" referred to, 515 said this article is from the "China Computer Education" total No. 515, if you will this The article is compared with the newspaper, and it will find that the last 03301.htm also has its specific connotation: 033 indicates that the 33rd version, and 01 certainly indicates the first article in this version, huh, huh. Understand the composition characteristics of the web name in the website, you can see the electronic version of the report in the first time. Don't believe, you are in the evening night (educational newspaper every Monday) directly in the address: http://media.ccidnet.com/media/cce/xxx/daodu.htm (where XXX said the next week's newspaper Disease number) Try? Anyway, I used this method without spending money and I saw the latest content of "newspaper" earlier than spending. Ha ha. Second, the work will be good, and the choice of the search plugin and browser must first make the equipment - I
1. Install a few IE plugins to help search
Although IE has cooperated with the famous 3721 Chinese website, IE provides the "Search" button in the toolbar, but after all, a search engine is difficult to meet everyone's search needs. The following describes how to install several other search engine toolboxes for IE.
1 Baidu search
Internet to http://bar.baidu.com/baidubar/custom/ieselch_sitesowangdg.exe download "Baidu Search" (225K). Install it immediately after the download is complete, when prompted "Baidu Search" has been installed correctly, restart IE. At the blank position of the toolbar, click the right button, just check "Baidubar", you can immediately pop up a Baidu search toolbar immediately below the address bar. In the future, as long as IE open IE, when you use the Baidu search engine to search, as long as you fill in this text input box directly, you can display the following "Search" button to display the keyword. Web page. Of course, if you want to use the search engine to find a song, you can enter the name of the song or singer, even a lyrics, click "MP3" or "lyrics" to complete the lookup process of songs or lyrics. The same keyword, if you click "Flash", you will pop up the Flash MTV or Flash animation work related to this song for you to download. Is it very convenient? In addition, "the station" is of course the meaning of "Search in the station". At the same time, it also noticed that the keywords we have entered will also appear at the far right of the toolbar. What is the role of it? It turns out that after the search results page is displayed on the screen, click here to move on all keywords on this page, which is easy to find the desired content from the web page. "High Brightness Display" button If you are pressed, all keywords on the current page are displayed in high brightness, making people a look at it. 2IE Plus Pro
This is an IE plugin, you can download the latest version of IEPLUS PRO to http://bar.baidu.com/ad/download.php?clientname =siteSowang. After the installation is complete, start IE. If you do not find the toolbar of IEPLUS Pro, you can click the right mouse button on the blank of the toolbar of IE, and you can hoot the "IEPLUS Pro". Figure 05 is its toolbar. Note that this drop-down menu will appear in the icon of IEPLUS Pro. As can be seen from this drop-down menu, it has a built-in search engine. It can easily search web pages, news, drivers, songs, etc.
2. Browser selection
Although IE has many users, I personally think that IE is not good in many convenience. Aspects of search above, it requires us to install third-party tools to enhance. Second, a web page needs to open an IE new window is also very annoyed, accounting for my machine in many valuable resources. In fact, there are a lot of browser markets, I recommend "I want to go online" this browser. Its latest version is 1.2, no need to install, directly extract it to a folder. Even if the system is reinstalled, there is no need to reinstall it. It has the following great places:
1 Open multiple web pages in the same window, greatly saving the usage of system resources.
2 Built in 10 classifications such as domestic, international, software, news, songs, drivers, etc., features nearly 50 search engines, and other special search software comparable. Just enter keywords you want to search, click the appropriate classification, then click Multiple Search Engines, you can easily use the same keyword to search in multiple search engines without re-enter these keywords until you find your information. until. For the system, the search engine does not have added, it also allows the user to add "personal" search engines yourself. The following will be described as an example to add "Baidu Search Engine" as an example.
Press the "Search" button on the toolbar to display the Search panel on the left side of the window, click "Add", and pop up the Add Search dialog. Enter Baidu Address www.baidu.com and press Enter and enter the word "key" in the web page, click the Baidu search button, and the dialog automatically enters "Next". Change the "Website Title" for "Baidu web search", you can see that several options with direct relationships with the search are automatically filled out, click "Finish" to make more names under the "Search" panel "Baidu web search" search engine link. Similarly, a "Baidu MP3 Song Search Engine" can also be established, a "Baidu Lyrics Search Engine", a "Baidu Flash file search engine". Just repeating the above steps, in the dialog box, click "Baidu Search" after clicking the corresponding search option. 3 Simple collection of searched information
51357 comes with a small web downloader HTML Downloader, when browsing the webpage, encounter a wonderful web link, you can directly use the mouse to drag this link to the "web downloader" in the lower right corner of the window, then pop up an HTML Downloader's window, simultaneous downloads. When you need to view the page in the future, you can open this window again, or you can open it directly, you can also choose some or all of the web pages, click "Output", you can select it in the specified location. In addition, 51357 has a miniature "Filling Collection Panel". Place this floating window on a suitable location of the screen, when browsing the web, you may often need the "extract" section or exciting content, it doesn't matter, "pick" "pick". As long as these goals are selected with the mouse, they can also be dragged these paragraphs to the "Collection Panel" by mouse. Wait a time, then slowly enter the finishing. Save the output method is: Click the "Export" button referred to in Figure 09, select a saved location and file name.
4 filter bad information, shield pop-up page
Under the Tools menu, check "Disable pop-up ad" and "Enable Blacklist" when you browse some websites with pop-up ads, these pages are automatically filtered. At the same time, after some malicious webpage invaded, we can add it to "Blacklist" so that next time it will never invade us.
(Source: http://study.vipcn.com)
