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。
组成
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<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 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
< 小于 < <
> 大于 > >
& &符号 & &
" 双引号 " "
其他常用的字符实体(Character Entities)
显示结果 说明 Entity Name Entity Number
版权 © ©
注册商标 ® ®
× 乘号 × ×
÷ 除号 ÷ ÷
ISO Latin-1字符集:
Character
. --- Not used Unused
--- 06 ; ; Tab Horizontal tab
--- .
; Unused
--- #20; --- Unused
--- Unused
--- Unused
--- Unused Unused
--- Unused
- -- . -- - Unused
--- Unused
--- Unused
--- Unused
--- Unused
--- Unused
--- -- ." " " 双引号Quotation mark
# # --- 数字标志Number sign
$ $ --- 美元标志Dollar sign
% % --- 百分号Percent sign
& & & 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)
0 0 --- 数字0 Digit 0
1 1 --- 数字1 Digit 1
2 2 --- 数字2 Digit 2
3 3 --- 数字3 Digit 3
4 4 --- 数字4 Digit 4
5 5 --- 数字5 Digit 5
6 6 --- 数字6 Digit 6
7 7 --- 数字7 Digit 7
8 8 --- 数字8 Digit 8
9 9 --- 数字9 Digit 9
: : --- 冒号Colon
; ; --- 分号Semicolon
< < < 小于号Less than
= = --- 等于符号Equals sign
> > > 大于号Greater than
? ? --- 问号Question mark
@ @ --- Commercial at
A Capital D D
E with Capital E G
H H Capital H
I Write L Capital K
L - Capital K Capital L
M Capital M Capital M
N Capital M Capital M
N Capital M -- Capital O Capital O
P --- Capital P Capital P
Q Capital Q Capital Q
R Capital R --- Capital S Capital S
T 84; Capital T W X Capital [ Left square bracket
. - Caret
_ _ ; but ` Small d mall f
g Patrunction G Small gmh h --- lowercase H Small h
i i --- lowercase i small I
J j --Swharcrocament K Small K
L l --- lowercase l small l
m m --- lowercase m small m
n n --- lowercase n smoll n
o o ; 4; #115; . v . w z z
{ . The right part of the number Right curly brace
~ 126;& #160; £ £ Pound sterling
¤ ¤ General currency sign
¥ ¥ § § Section number Section sign
¨ ¨ ordinal
? Left? ¬ & NOT Not Sign
? & Shy; Soft Hyphen
? ® & Reg; Symbol Macron Accent ° ° & deg; degree logo DEGREE SIGN
± ± & Plusmn; plus or minus Plus or Minus
2 ² & SUP2; Overnight 2 SuperScript Two
3 ³ UPERScript three
′ · ¸ Cedilla
1 » Right angle quote, guillemet right
? Fraction one-fourth
? ½ ½ 二分之一Fraction one-half
? ¾ ¾ 四分之三Fraction three-fourths
? ¿ ¿ Inverted question mark
à À À Capital A, grave accent
á Á Á Capital A, acute accent
? Â Â Capital A, circumflex
? Ã Ã Capital A, tilde
? Ä Ä Capital A, di?esis / umlaut
? Å Å Capital A, ring
? Æ Æ Capital AE ligature
? Ç Ç Capital C, cedilla
è È È Capital E, grave accent
é É É Capital E, acute accent
ê Ê Ê Capital E, circumflex
? Ë Ë Capital E, di?esis / umlaut
ì Ì Ì Capital I, grave accent
í Í Í Capital I, acute accent
? Î Î Capital I, circumflex
? Ï Ï Capital I, di?esis / umlaut
D Ð Ð Capital Eth, Icelandic
? Ñ Ñ Capital N, tilde
ò Ò Ò Capital O, grave accent
ó Ó Ó Capital O, acute accent
? Ô Ô Capital O, circumflex
? Õ Õ Capital O, tilde
? Ö Ö Capital O, di?esis / umlaut
× × × 乘号Multiply sign
? Ø Ø Capital O, slash
ù Ù Ù Capital U, grave accent
ú Ú Ú Capital U, acute accent
? Û Û Capital U, circumflex
ü Ü Ü Capital U, di?esis / umlaut
Y Ý Ý Capital Y, acute accent
T Þ Þ Capital Thorn, Icelandic
? ß ß Small sharp s, German sz
à à à Small a, grave accent
á á á Small a, acute accent
a â â Small a, circumflex
? ã ã Small a, tilde
? ä ä Small a, di?esis / umlaut
? å å Small a, ring
? æ æ Small ae ligature
? ç ç Small c, cedilla
è è è Small e, grave accent
é é é Small e, acute accent
ê ê ê Small e, circumflex
? ë ë Small e, di?esis / umlaut
ì ì ì Small i, grave accent
í í í Small i, acute accent
? î î Small i, circumflex
? ï ï Small i, di?esis / umlaut
e ð ð Small eth, Icelandic
? ñ ñ Small n, tilde
ò ò ò Small o, grave accent
ó ó ó Small o, acute accent
? ô ô Small o, circumflex
? õ õ Small o, tilde
? ö ö Small o, di?esis / umlaut
÷ ÷ ÷ 除号Division sign
? ø ø Small o, slash
ù ù ù Small u, grave accent
ú ú ú Small u, acute accent
? û û Small u, circumflex
ü ü ü Small u, di?esis / umlaut
y ý ý Small y, acute accent
t þ þ Small thorn, Icelandic
? ÿ ÿ Small y, umlaut
symbols, mathematical symbols, and Greek letters
? ƒ Α Α Β Β Γ Γ Δ Δ
Ε Ε Ζ Ζ Η Η Θ Θ Ι Ι
Κ Κ Λ Λ Μ Μ Ν Ν Ξ Ξ
Ο Ο Π Π Ρ Ρ Σ Σ Τ Τ
Υ Υ Φ Φ Χ Χ Ψ Ψ Ω Ω
α α β β γ γ δ δ ε ε
ζ ζ η η θ θ ι ι κ κ
λ λ μ μ ν ν ξ ξ ο ο
π π ρ ρ ? ς σ σ τ τ
υ υ φ φ χ χ ψ ψ ω ω
? ϑ ? ϒ ? ϖ ? • … …
′ ′ ″ ″  ̄ ‾ ? ⁄ ? ℘
? ℑ ? ℜ ? ™ ? ℵ ← ←
↑ ↑ → → ↓ ↓ ? ↔ ? ↵
? ⇐ ? ⇑ ? ⇒ ? ⇓ ? ⇔
? ∀ ? ∂ ? ∃ ? ∅ ? ∇
∈ ∈ ? ∉ ? ∋ ∏ ∏ ∑ ∑
? − ? ∗ √ √ ∝ ∝ ∞ ∞
∠ ∠ ∧ ∧ ∨ ∨ ∩ ∩ ∪ ∪
∫ ∫ ∴ ∴ ~ ∼ ? ≅ ≈ ≈
≠ ≠ ≡ ≡ ≤ ≤ ≥ ≥ ? ⊂
? ⊃ ? ⊄ ? ⊆ ? ⊇ ? ⊕
? ⊗ ⊥ ⊥ ? ⋅ ? ⌈ ? ⌉
? ⌊ ? ⌋ ? 〈 ? 〉 ? ◊
? ♠ ? ♣ ? ♥ ? ♦
markup-significant and internationalization characters
“ " & & < < > > ? Œ
? œ ? Š ? š ? Ÿ ? ˆ
? ˜ ? ? ? ?
? ? ? ? – — —
‘ ‘ ’ ’ ? ‚ “ “ ” ”
? „ ? † ? ‡ ‰ ‰ ? ‹
? › ?/STRONG> €
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