Overview of web front-end development
1 Web front-end development related concepts
Web development is divided into two parts: front-end and back-end. The back-end refers to the development of programs, databases, and servers, while the front-end refers to web pages that directly contact users, such as layouts. , Special effects, interaction, etc.
1.1 Browser
Browser refers to a kind of software that can display the content of HTML files of web server or file system and allow users to interact with these files.
Common browsers are: Firefox, Internet Explorer, Safari, Opera, Google Chrome, QQ browser, Baidu browser, Cheetah browser, 360 browser, UC browser, travel browser, window of the world browser, etc. Not all browsers support HTML5, and different versions of the same browser support HTML5 differently.
1.2 URL
URL (English abbreviation for Uniform Resource Locator) is translated into "Uniform Resource Locator" in Chinese and is the address of a standard resource on the Internet. Every file on the Internet has a unique URL.
The basic URL includes the mode (or protocol), server name (or IP address), path, and file name. The complete, common uniform resource identifier syntax format with authorized part is as follows:
protocol://username:[email protected] name.top-level domain name:port number/directory/file name.file suffix?parameter=value#sign
1.3 WWW
WWW (English abbreviation of World Wide Web) is translated into "World Wide Web" in Chinese, and is a web browsing service provided by Internet, often referred to as Web.
1.4 http
HTTP (abbreviation for English Hypertext transfer protocol) is translated into Chinese as Hypertext Transfer Protocol, which is a detailed rule that specifies the communication between browsers and World Wide Web servers.
1.5 Website
Refers to a collection of web pages that are used to display specific content and are produced on the Internet according to certain rules and using tools such as HTML. The user can visit the website through the browser, obtain the necessary information or enjoy the network service.
1.6 Web standards
Web standards are a collection of standards developed by W3C and other standardization organizations. The standard is used to create and interpret Web-based content. The standard of the web page part is described in three parts: structure, performance, and behavior.
2 Multiple choice questions about the overview of web front-end development
2.1 Multiple choice questions
1. All browsers parse the same CSS style the same, so the display effect of the page under different browsers is exactly the same.
A.
Yes
B.
Wrong
2. URL (short for English Uniform Resource Locator) is translated into Chinese as "Uniform Resource Locator". URL is actually a web address, commonly known as "web address".
A.
Yes
B.
Wrong
3. "HTTP" is a rule that specifies the communication between the browser and the World Wide Web server.
A.
Yes
B.
Wrong
4. Among the following options, () is not a web browser
A、
Linux
B、
Firefox
C、
Safari
D 、
Opera
5. Student Zhang is visiting the Sina homepage through dial-up Internet at home. At this time, his own computer is ().
A.
Server
B.
Browser
C.
Even the server is a browser
D. It
is neither a server nor a browser
2.1 Reference answer
1、B
2、A
3、A
4、A
5、B