1) logic and/or: And, or
- Note that and or must be capitalized. Otherwise, they are considered common words rather than search commands.
- And commonProgramming LanguageThe difference is that the or command takes precedence over the and command.
- Abbreviation: The and command is generally replaced by a space and is not explicitly written. In addition, the and command can be replaced by +. Or command can be used | instead.
- Example: inverted or signature files or file or index, which is equivalent to (inverted or signature) (files or file or index)
2) Non-logical :-
- Example: Search Engine history-culture-China history-World History
3) complete match :"... "
- Example: "World War I" indicates searching for World War 1.
4) wildcard :*?
- Like our usual habits, "*" represents a series of characters, "?" Represents a single character.
- Example: progr? M
- Tip: Do not expect Google to use progr? M found program, because progr and m are considered as separate words, and one character can appear between the two words, that's all.
5) site: search for a website or domain name
- Example: Search Engine skills site: edu.cn
- This indicates the search engine Skills page on the Chinese education and research website (edu.cn.
6) filetype: search for a certain type of file
- Example: filetype: PDF
- This indicates that only PDF files are searched.
7) in command: Location keyword search.
- Intitle: Search for the webpage title. This is usually effective for popular topics. Example: intitle: "geforce 7800" + Test
- Allintitle: this command is an exclusive command and cannot be mixed with other commands.
- For example, allintitile: "geforce 7800" test and intitle: "geforce 7800" + test have the same meaning. However, allintile is exclusive and cannot be added with other non-intitle constraints.
- Note: here, you will find it interesting to replace and with +. If there is no + command, we need to write: intitle: "geforce 7800" intitle: test, because Google does not support this syntax: intitle :( "geforce 7800" test)
- Inurl: Search for the URL of a webpage. For example, inurl: dowload indicates to search for webpages whose URLs contain download.
- Allinurl: exclusive command of inurl.
- Inanchor: Search for the link and anchor on the webpage.
- Note that inurl is different from inurl: inurl is the URL address of the webpage, and inanchor is the external text used to point to the URL address (<A>... </A> text.
- For example: inanchor: Download, you may findFlashget best download management programThe root of the page does not contain the word "Download.
- Allinanchor: exclusive command of inanchor.
- Intext: search in the body.
- Allintext: exclusive command of intext.
8) Link: searches for all webpages that are linked to a specific URL.
- The most important purpose: quickly determine the "popularity" of a Web page ".
- For example, "link: www.newhua.com" indicates all external links pointing to "huajun Software Park.
- Note: similar to other commands, link: And URL cannot contain spaces. This is especially pointed out because there are online tutorials saying that the link and allinurl are the same, they are exclusive commands, and there can be spaces in the middle. I don't know much about the development history of Google search commands. I can only guess that this was the case.
9) related: search for a webpage's "similar webpage ".
- For example, "related: www.newhua.com" indicates to find a webpage similar to "huajun Software Park.
- This command is actually widely used by Google itself, but it may not attract your attention. Each search result of Google has a webpage-like link. It is.
10) cache: web page snapshot (omitted ).
11) daterange: It is said that the page update time can be limited. But I did not try it out.
12) value range: ..
- Example: digital cameras 600. 9 million pixels 3000. 4000 yuan
- Note: there must be a space between "900" and.
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