HTML字符实体(Character Entities)

有些字符在HTML里有特别的含义，比如小于号<就表示HTML Tag的开始，这个小于号是不显示在我们最终看到的网页里的。那如果我们希望在网页中显示一个小于号，该怎么办呢？

这就要说到HTML字符实体(HTML Character Entities)了。

一个字符实体(Character Entity)分成三部分：第一部分是一个&符号，英文叫ampersand；第二部分是实体(Entity)名字或者是#加上实体(Entity)编号；第三部分是一个分号。

比如，要显示小于号，就可以写&lt;或者&#;。

用实体(Entity)名字的好处是比较好理解，一看lt，大概就猜出是less than的意思，但是其劣势在于并不是所有的浏览器都支持最新的Entity名字。而实体(Entity)编号，各种浏览器都能处理。

注意：Entity是区分大小写的。

如何显示空格

通常情况下，HTML会自动截去多余的空格。不管你加多少空格，都被看做一个空格。比如你在两个字之间加了10个空格，HTML会截去9个空格，只保留一个。为了在网页中增加空格，你可以使用&nbsp;表示空格。

最常用的字符实体(Character Entities)

显示结果 说明 Entity Name Entity Number

 显示一个空格 &nbsp; &#;

< 小于 &lt; &#;

> 大于 &gt; &#;

& &符号 &amp; &#;

" 双引号 &quot; " 

其他常用的字符实体(Character Entities)

显示结果 说明 Entity Name Entity Number

? 版权 &copy; &#;

? 注册商标 &reg; &#;

× 乘号 &times; &#;

÷ 除号 &divide; &#; 

ISO Latin-1字符集:

字符

 十进制字符编号 实体名字 说明

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 制表符Horizontal tab

--- &#; --- 换行Line feed

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 回车Carriage Return

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

--- &#; --- 未使用Unused

 &#; --- Space

! &#; --- 惊叹号Exclamation mark

" " &quot; 双引号Quotation mark

# &#; --- 数字标志Number sign

$ &#; --- 美元标志Dollar sign

% &#; --- 百分号Percent sign

& &#; &amp; Ampersand

" ' --- 单引号Apostrophe

( &#; --- 小括号左边部分Left parenthesis

) &#; --- 小括号右边部分Right parenthesis

* &#; --- 星号Asterisk

+ &#; --- 加号Plus sign

, &#; --- 逗号Comma

- &#; --- 连字号Hyphen

. &#; --- 句号Period (fullstop)

/ &#; --- 斜杠Solidus (slash)

 &#; --- 数字0 Digit

 &#; --- 数字1 Digit

 &#; --- 数字2 Digit

 &#; --- 数字3 Digit

 &#; --- 数字4 Digit

 &#; --- 数字5 Digit

 &#; --- 数字6 Digit

 &#; --- 数字7 Digit

 &#; --- 数字8 Digit

 &#; --- 数字9 Digit

: &#; --- 冒号Colon

; &#; --- 分号Semicolon

< &#; &lt; 小于号Less than

= &#; --- 等于符号Equals sign

> &#; &gt; 大于号Greater than

? &#; --- 问号Question mark

@ &#; --- Commercial at

A &#; --- 大写A Capital A

B &#; --- 大写B Capital B

C &#; --- 大写C Capital C

D &#; --- 大写D Capital D

E &#; --- 大写E Capital E

F &#; --- 大写F Capital F

G &#; --- 大写G Capital G

H &#; --- 大写H Capital H

I &#; --- 大写J Capital I

J &#; --- 大写K Capital J

K &#; --- 大写L Capital K

L &#; --- 大写K Capital L

M &#; --- 大写M Capital M

N &#; --- 大写N Capital N

O &#; --- 大写O Capital O

P &#; --- 大写P Capital P

Q &#; --- 大写Q Capital Q

R &#; --- 大写R Capital R

S &#; --- 大写S Capital S

T &#; --- 大写T Capital T

U &#; --- 大写U Capital U

V &#; --- 大写V Capital V

W &#; --- 大写W Capital W

X &#; --- 大写X Capital X

Y &#; --- 大写Y Capital Y

Z &#; --- 大写Z Capital Z

[ &#; --- 中括号左边部分Left square bracket

\ &#; --- 反斜杠Reverse solidus (backslash)

] &#; --- 中括号右边部分Right square bracket

^ &#; --- Caret

_ &#; --- 下划线Horizontal bar (underscore)

` &#; --- 尖重音符Acute accent

a &#; --- 小写a Small a

b &#; --- 小写b Small b

c &#; --- 小写c Small c

d &#; --- 小写d Small d

e &#; --- 小写e Small e

f &#; --- 小写f Small f

g &#; --- 小写g Small g

h &#; --- 小写h Small h

i &#; --- 小写i Small i

j &#; --- 小写j Small j

k &#; --- 小写k Small k

l &#; --- 小写l Small l

m &#; --- 小写m Small m

n &#; --- 小写n Small n

o &#; --- 小写o Small o

p &#; --- 小写p Small p

q &#; --- 小写q Small q

r &#; --- 小写r Small r

s &#; --- 小写s Small s

t &#; --- 小写t Small t

u &#; --- 小写u Small u

v &#; --- 小写v Small v

w &#; --- 小写w Small w

x &#; --- 小写x Small x

y &#; --- 小写y Small y

z &#; --- 小写z Small z

｛ &#; --- 大括号左边部分Left curly brace

| &#; --- 竖线Vertical bar

｝ &#; --- 大括号右边部分Right curly brace

~ &#; --- Tilde

--- &#; --- 未使用Unused

  &#; &nbsp; 空格Nonbreaking space

? &#; &iexcl; Inverted exclamation

￠ &#; &cent; 货币分标志Cent sign

￡ &#; &pound; 英镑标志Pound sterling

¤ &#; &curren; 通用货币标志General currency sign

￥ &#; &yen; 日元标志Yen sign

| &#; &brvbar; or &brkbar; 断竖线Broken vertical bar

§ &#; &sect; 分节号Section sign

¨ &#; &uml; or &die; 变音符号Umlaut

? &#; &copy; 版权标志Copyright

a &#; &ordf; Feminine ordinal

? &#; &laquo; Left angle quote, guillemet left

? &#; &not Not sign

­ &#; &shy; Soft hyphen

? &#; &reg; 注册商标标志Registered trademark

ˉ &#; &macr; or &hibar; 长音符号Macron accent

° &#; &deg; 度数标志Degree sign

± &#; &plusmn; 加或减Plus or minus

 &#; &sup2; 上标2 Superscript two

 &#; &sup3; 上标3 Superscript three

′ &#; &acute; 尖重音符Acute accent

μ &#; &micro; Micro sign

? &#; &para; Paragraph sign

· &#; &middot; Middle dot

? &#; &cedil; Cedilla

 &#; &sup1; 上标1 Superscript one

o &#; &ordm; Masculine ordinal

? &#; &raquo; Right angle quote, guillemet right

? &#; &frac14; 四分之一Fraction one-fourth

? &#; &frac12; 二分之一Fraction one-half

? &#; &frac34; 四分之三Fraction three-fourths

? &#; &iquest; Inverted question mark

à &#; &Agrave; Capital A, grave accent

á &#; &Aacute; Capital A, acute accent

? &#; &Acirc; Capital A, circumflex

? &#; &Atilde; Capital A, tilde

? &#; &Auml; Capital A, di?esis / umlaut

? &#; &Aring; Capital A, ring

? &#; &AElig; Capital AE ligature

? &#; &Ccedil; Capital C, cedilla

è &#; &Egrave; Capital E, grave accent

é &#; &Eacute; Capital E, acute accent

ê &#; &Ecirc; Capital E, circumflex

? &#; &Euml; Capital E, di?esis / umlaut

ì &#; &Igrave; Capital I, grave accent

í &#; &Iacute; Capital I, acute accent

? &#; &Icirc; Capital I, circumflex

? &#; &Iuml; Capital I, di?esis / umlaut

D &#; &ETH; Capital Eth, Icelandic

? &#; &Ntilde; Capital N, tilde

ò &#; &Ograve; Capital O, grave accent

ó &#; &Oacute; Capital O, acute accent

? &#; &Ocirc; Capital O, circumflex

? &#; &Otilde; Capital O, tilde

? &#; &Ouml; Capital O, di?esis / umlaut

× &#; &times; 乘号Multiply sign

? &#; &Oslash; Capital O, slash

ù &#; &Ugrave; Capital U, grave accent

ú &#; &Uacute; Capital U, acute accent

? &#; &Ucirc; Capital U, circumflex

ü &#; &Uuml; Capital U, di?esis / umlaut

Y &#; &Yacute; Capital Y, acute accent

T &#; &THORN; Capital Thorn, Icelandic

? &#; &szlig; Small sharp s, German sz

à &#; &agrave; Small a, grave accent

á &#; &aacute; Small a, acute accent

a &#; &acirc; Small a, circumflex

? &#; &atilde; Small a, tilde

? &#; &auml; Small a, di?esis / umlaut

? &#; &aring; Small a, ring

? &#; &aelig; Small ae ligature

? &#; &ccedil; Small c, cedilla

è &#; &egrave; Small e, grave accent

é &#; &eacute; Small e, acute accent

ê &#; &ecirc; Small e, circumflex

? &#; &euml; Small e, di?esis / umlaut

ì &#; &igrave; Small i, grave accent

í &#; &iacute; Small i, acute accent

? &#; &icirc; Small i, circumflex

? &#; &iuml; Small i, di?esis / umlaut

e &#; &eth; Small eth, Icelandic

? &#; &ntilde; Small n, tilde

ò &#; &ograve; Small o, grave accent

ó &#; &oacute; Small o, acute accent

? &#; &ocirc; Small o, circumflex

? &#; &otilde; Small o, tilde

? &#; &ouml; Small o, di?esis / umlaut

÷ &#; &divide; 除号Division sign

? &#; &oslash; Small o, slash

ù &#; &ugrave; Small u, grave accent

ú &#; &uacute; Small u, acute accent

? &#; &ucirc; Small u, circumflex

ü &#; &uuml; Small u, di?esis / umlaut

y &#; &yacute; Small y, acute accent

t &#; &thorn; Small thorn, Icelandic

? &#; &yuml; Small y, umlaut 

symbols, mathematical symbols, and Greek letters

? &fnof; Α &Alpha; Β &Beta; Γ &Gamma; Δ &Delta;

Ε &Epsilon; Ζ &Zeta; Η &Eta; Θ &Theta; Ι &Iota;

Κ &Kappa; Λ &Lambda; Μ &Mu; Ν &Nu; Ξ &Xi;

Ο &Omicron; Π &Pi; Ρ &Rho; Σ &Sigma; Τ &Tau;

Υ &Upsilon; Φ &Phi; Χ &Chi; Ψ &Psi; Ω &Omega;

α &alpha; β &beta; γ &gamma; δ &delta; ε &epsilon;

ζ &zeta; η &eta; θ &theta; ι &iota; κ &kappa;

λ &lambda; μ &mu; ν &nu; ξ &xi; ο &omicron;

π &pi; ρ &rho; ? &sigmaf; σ &sigma; τ &tau;

υ &upsilon; φ &phi; χ &chi; ψ &psi; ω &omega;

? &thetasym; ? &upsih; ? &piv; ? &bull; … &hellip;

′ &prime; ″ &Prime; ￣ &oline; ? &frasl; ? &weierp;

? &image; ? &real; ? &trade; ? &alefsym; ← &larr;

↑ &uarr; → &rarr; ↓ &darr; ? &harr; ? &crarr;

? &lArr; ? &uArr; ? &rArr; ? &dArr; ? &hArr;

? &forall; ? &part; ? &exist; ? &empty; ? &nabla;

∈ &isin; ? &notin; ? &ni; ∏ &prod; ∑ &sum;

? &minus; ? &lowast; √ &radic; ∝ &prop; ∞ &infin;

∠ &ang; ∧ &and; ∨ &or; ∩ &cap; ∪ &cup;

∫ &int; ∴ &there4; ～ &sim; ? &cong; ≈ &asymp;

≠ &ne; ≡ &equiv; ≤ &le; ≥ &ge; ? &sub;

? &sup; ? &nsub; ? &sube; ? &supe; ⊕ &oplus;

? &otimes; ⊥ &perp; ? &sdot; ? &lceil; ? &rceil;

? &lfloor; ? &rfloor; ? &lang; ? &rang; ? &loz;

? &spades; ? &clubs; ? &hearts; ? &diams; 

markup-significant and internationalization characters

“ &quot; & &amp; < &lt; > &gt; ? &OElig;

? &oelig; ? &Scaron; ? &scaron; ? &Yuml; ? &circ;

? &tilde; ? &ensp; ? &emsp; ? &thinsp; ? &zwnj;

? &zwj; ? &lrm; ? &rlm; – &ndash; — &mdash;

‘ &lsquo; ’ &rsquo; ? &sbquo; “ &ldquo; ” &rdquo;

? &bdquo; ? &dagger; ? &Dagger; ‰ &permil; ? &lsaquo;

? &rsaquo; ?/STRONG> &euro;