Uniform Resource Locator (URL, abbreviation of English uniform resource locator), whose English abbreviation is called URL. Also known as the web address, it is the address of the resource to which the standard is applied. Originally invented by TimBerners-Lee, the name of bone has been compiled by the Global Alliance as standard RFC 1738.

2. Link format

Links uniquely identify website resources and can be obtained through the corresponding URL. UR format is usually as follows: protocol type: server address [:port number]/path/file name [parameter = value]

The [] part of the above structure is optional. If the port number is different from the relevant protocol default value (80), you need to include the port number. Protocol types include HTTP, MAILTO, FILE, FTP, etc. The URL of the resource is similar to: /goods/search.phptom-apple.

Website.com server search.php is the script file on the server side, followed by the parameter items required for script execution, and Apple is the parameter value of the corresponding item input by the user.

Extended data:

URL function

1, URL is portable: because URL merges all resources in the name of concatenation, and different protocols use different mechanisms when transmitting data, it is very important to transmit URL safely through any protocol.

2. The URL is accurate: therefore, even if it is invisible, unprintable characters can be transplanted through the mail program and cannot be used in the URL.

3.URL integrity: Sometimes people want URLs to contain binary data or characters in addition to public security strings. Therefore, a transmission mechanism is needed to encode unsafe characters into safe characters and then transmit them.

Baidu Encyclopedia-Unified Resource Positioning System