Html 简明教程

HTML - Entities

HTML Entities 用于表示 HTML 中保留的字符或具有特殊含义的字符。还可以用来显示标准键盘上不可用的字符。实体以和号 ( & ) 开头，以分号 ( ; ) 结束。

For Example:

  1. >（大于）= >

  2. <（小于）= <

HTML Character Entities Name and Code

在 HTML 文本中不能使用大于号和小于号或尖括号，因为浏览器会以不同方式对待它们，并尝试绘制与 HTML 标签相关的含义。

我们可以使用实体名称或实体数来显示保留的 HTML 字符，即要显示小于号 (<)，我们必须编写：< 或 <

HTML 处理器必须支持下表中列出的五个特殊字符。

Symbol

Description

Entity Name

Number Code

"

quotation mark

"

"

'

apostrophe

'

'

&

ampersand

&

&

<

less-than

<

<

>

greater-than

>

>

HTML Non Breaking Spaces Name and Code

在 HTML 中，可以使用 &nbsp 实体在元素和文本之间添加空格。与空格键提供的空格不同，此空格不会换行。

  1. 由 &amp;nbsp 分隔的两个单词会粘在一起，即使在行尾。

  2. 如果在文本中使用空格键输入 5 个空格，浏览器只会添加 1 个空格。若要在文本中添加真正的空格，可以使用 &amp;nbsp 字符实体。

Example of HTML Entities

我们看一下以下示例，在代码中显示一些字符实体和转义符号。

<!DOCTYPE html>
<html>
<head>
<title>HTML Character Entities</title>
</head>
<body>
<h1>HTML Character Entities</h1>
<table>
      <tr>
         <th>Symbol</th>
         <th>Entity</th>
      </tr>
      <tr>
         <td>"</td>
         <td>&amp;quot;</td>
      </tr>
         <tr>
         <td>&</td>
         <td>&amp;amp;</td>
      </tr>
      </tr>
         <tr>
         <td>'</td>
         <td>&amp;apos;</td>
      </tr>
</table>
This is &nbsp; &nbsp; &nbsp; example of
&nbsp; &nbsp; &nbsp; &amp;nbsp; character
</body>
</html>

HTML 4.0 中还有一长串特殊字符。若要让这些字符出现在文档中，可以使用数字代码或实体名称。例如，要插入版权符号，可以使用以下两种方法之一：

&copy; 2007
or
&#169; 2007

ISO 8859-1 Symbol Entities Name and Code

以下是列出的 ISO 8859-1 符号实体：

Result

Description

Entity Name

Number Code

non-breaking space

 

 

¡

inverted exclamation mark

¡

¡

¤

currency

¤

¤

¢

cent

¢

¢

£

pound

£

£

¥

yen

¥

¥

¦

broken vertical bar

¦

¦

§

section

§

§

¨

spacing diaeresis

¨

¨

©

copyright

©

©

ª

feminine ordinal indicator

ª

ª

«

angle quotation mark (left)

«

«

¬

negation

¬

¬

­

soft hyphen

­

­

®

registered trademark

®

®

™

trademark

™

™

¯

spacing macron

¯

¯

°

degree

°

°

±

plus-or-minus

±

±

²

superscript 2

²

²

³

superscript 3

³

³

´

spacing acute

´

´

µ

micro

µ

µ

paragraph

·

middle dot

·

·

¸

spacing cedilla

¸

¸

¹

superscript 1

¹

¹

º

masculine ordinal indicator

º

º

»

angle quotation mark (right)

»

»

¼

fraction 1/4

¼

¼

½

fraction 1/2

½

½

¾

fraction 3/4

¾

¾

¿

inverted question mark

¿

¿

×

multiplication

×

×

÷

division

÷

÷

ISO 8859-1 Character Entities Name and Code

以下是列出的 ISO 8859-1 字符实体：

Result

Description

Entity Name

Number Code

À

capital a, grave accent

À

À

Á

capital a, acute accent

Á

Á

Â

capital a, circumflex accent

Â

Â

Ã

capital a, tilde

Ã

Ã

Ä

capital a, umlaut mark

Ä

Ä

Å

capital a, ring

Å

Å

Æ

capital ae

Æ

Æ

Ç

capital c, cedilla

Ç

Ç

È

capital e, grave accent

È

È

É

capital e, acute accent

É

É

Ê

capital e, circumflex accent

Ê

Ê

Ë

capital e, umlaut mark

Ë

Ë

Ì

capital i, grave accent

Ì

Ì

Í

capital i, acute accent

Í

Í

Î

capital i, circumflex accent

Î

Î

Ï

capital i, umlaut mark

Ï

Ï

Ð

capital eth, Icelandic

Ð

Ð

Ñ

capital n, tilde

Ñ

Ñ

Ò

capital o, grave accent

Ò

Ò

Ó

capital o, acute accent

Ó

Ó

Ô

capital o, circumflex accent

Ô

Ô

Õ

capital o, tilde

Õ

Õ

Ö

capital o, umlaut mark

Ö

Ö

Ø

capital o, slash

Ø

Ø

Ù

capital u, grave accent

Ù

Ù

Ú

capital u, acute accent

Ú

Ú

Û

capital u, circumflex accent

Û

Û

Ü

capital u, umlaut mark

Ü

Ü

Ý

capital y, acute accent

Ý

Ý

Þ

capital THORN, Icelandic

Þ

Þ

ß

small sharp s, German

ß

ß

à

small a, grave accent

à

à

á

small a, acute accent

á

á

â

small a, circumflex accent

â

â

ã

small a, tilde

ã

ã

ä

small a, umlaut mark

ä

ä

å

small a, ring

å

å

æ

small ae

æ

æ

ç

small c, cedilla

ç

ç

è

small e, grave accent

è

è

é

small e, acute accent

é

é

ê

small e, circumflex accent

ê

ê

ë

small e, umlaut mark

ë

ë

ì

small i, grave accent

ì

ì

í

small i, acute accent

í

í

î

small i, circumflex accent

î

î

ï

small i, umlaut mark

ï

ï

ð

small eth, Icelandic

ð

ð

ñ

small n, tilde

ñ

ñ

ò

small o, grave accent

ò

ò

ó

small o, acute accent

ó

ó

ô

small o, circumflex accent

ô

ô

õ

small o, tilde

õ

õ

ö

small o, umlaut mark

ö

ö

ø

small o, slash

ø

ø

ù

small u, grave accent

ù

ù

ú

small u, acute accent

ú

ú

û

small u, circumflex accent

û

û

ü

small u, umlaut mark

ü

ü

ý

small y, acute accent

ý

ý

þ

small thorn, Icelandic

þ

þ

ÿ

small y, umlaut mark

ÿ

ÿ

Other Entities Supported by Browsers

以下是浏览器支持的其他实体：

Result

Description

Entity Name

Number Code

Œ

capital ligature OE

Œ

Œ

œ

small ligature oe

œ

œ

Š

capital S with caron

Š

Š

š

small S with caron

š

š

Ÿ

capital Y with diaeres

Ÿ

Ÿ

ˆ

modifier letter circumflex accent

ˆ

ˆ

˜

small tilde

˜

˜

en space

 

 

em space

 

 

thin space

 

 

‌

zero width non-joiner

‌

‌

‍

zero width joiner

‍

‍

‎

left-to-right mark

‎

‎

‏

right-to-left mark

‏

‏

–

en dash

–

–

—

em dash

—

—

‘

left single quotation mark

‘

‘

’

right single quotation mark

’

’

‚

single low-9 quotation mark

‚

‚

“

left double quotation mark

“

“

”

right double quotation mark

”

”

„

double low-9 quotation mark

„

„

†

dagger

†

†

‡

double dagger

‡

‡

…

horizontal ellipsis

…

…

‰

per mille

‰

‰

‹

single left-pointing angle quotation

‹

‹

›

single right-pointing angle quotation

›

›

€

euro

€

€