逻辑标签用于告诉浏览器标签内写入的文本类型。它们与物理标签不同,因为物理标签用于决定文本的外观,不提供有关文本的任何信息。
逻辑标签用于向视障人士表明文本中有更重要的内容或强调文本。
我们可以使用逻辑标签的一些情况是:
- 当我们想在我们的网站上编写代码时。
- 当我们想强调一些文字时。
- 当我们想在网页上显示缩写时。
- 当我们想在我们的网页上显示一些著名的语录时。
- 当我们想根据变量编写一些数学公式时。
这里有很多种逻辑文本是其中一些的列表:
Tag | Description |
---|---|
Defines the abbreviation of text. | |
Defines the acronym. | |
contact information of a person or an organization. | |
Defines citation. It displays the text in italic format. | |
|
Defines the piece of computer code. |
Defines a long quotation. | |
Defines the deleted text and is used to mark a portion of text which has been deleted from the document. | |
Defines the definition element and is used to representing a defining instance in HTML. | |
Defines inserted text. | |
Defines keyboard input text. | |
Defines the block of preformatted text which preserves the text spaces, line breaks, tabs, and other formatting characters which are ignored by web browsers. | |
Defines the short quotation. | |
Defines the sample output text from a computer program. | |
Defines strong text i.e. show the importance of the text. | |
Defines the variable in a mathematical equation or in the computer program. |
现在让我们通过例子来实现上面列出的一些标签
1. 标签: 标签代表双向覆盖。此标签用于更改文本的方向。它需要一个“dir”属性来决定文本的方向。
句法:
Statements...
HTML
This text will go right-to-left
GeeksforGeeks
This text will go left-to-right
GeeksforGeeks
HTML
Welcome to year 2020 2021
HTML
price of this shoe is
1000850
HTML
This is
bolded (important) text.
HTML
This is your code
HTML
Press Ctrl +
C To copy text
HTML
Welcome to geeks for
geeks
this is
pre tag
HTML
Logical Tags
Welcome to
GFG
This is
GFG
GeeksforGeeks, 5th & 6th Floor,
Royal Kapsons, A- 118, Sector- 136,
Noida, Uttar Pradesh (201305)
GeeksforGeeks is
my favourite website.
Sample code: system.out.println();
A Computer Science portal for geeks.
It contains well written, well
thought and well explained computer
science and programming articles,
and quizzes.
This contains deleted content.
Newly inserted content.
GeeksforGeeks is a
Computer Science portal for geeks.
It contains well written, well
thought and well explained computer
science and programming articles,
and quizzes.
GeeksforGeeks - This is
a Keyboard input
Dear User,
Congratulations !!
We are delighted to inform you that
you are going to be part of GfG journey.
Thanks,
GfG Team
This is a predefine formatted text
输出:
This text will go right-to-left
skeeGfofskeeG
This text will go left-to-right
GeeksforGeeks
2. 标签: 标签画一条线切割文本,显示文本错误或已删除。
句法:
Statements...
HTML
Welcome to year 2020 2021
输出:
3. 标签: 标签用于显示某些文本被插入到文档中。浏览器通常会显示带下划线的插入标签。
句法:
Statements...
HTML
price of this shoe is
1000850
输出:
4. 标签: 标签用来告诉浏览器这个标签里面的文字是非常重要和有意义的。浏览器以粗体显示此文本。
句法:
Statements...
HTML
This is
bolded (important) text.
输出:
5、标签:
code标签用来告诉用户这个标签里面写的文字是某种编程语言的代码。此标签内的内容以等宽字体显示。
句法:
Statements...
HTML
This is your code
输出:
6. 标签: 标签用于表示显示的文本是从键盘输入的。里面的内容以等宽字体显示。
句法:
Statements...
HTML
Press Ctrl +
C To copy text
输出:
- 7.
标签
: pre 标签中的文本以固定宽度字体显示,并保留所有空格和换行符,即文本显示与 HTML 源代码中编写的完全相同。句法:
Statements...
HTML
Welcome to geeks for geeks this is pre tag
输出:
使用逻辑标签的示例代码:此示例包含所有逻辑标签。
HTML
Logical Tags
Welcome to GFG
This is GFG
GeeksforGeeks, 5th & 6th Floor, Royal Kapsons, A- 118, Sector- 136, Noida, Uttar Pradesh (201305)
GeeksforGeeks is my favourite website.
Sample code: system.out.println();
A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, and quizzes.
This contains deleted content.Newly inserted content.GeeksforGeeks is a Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, and quizzes.
GeeksforGeeks - This is a Keyboard inputDear User, Congratulations !! We are delighted to inform you that you are going to be part of GfG journey. Thanks, GfG Team This is a predefine formatted text
输出: