HTML 符号实体参考手册

HTML 符号实体
本字符实体参考手册包括了数学符号、希腊字符、各种箭头记号、科技符号以及形状。
注释： 实体名称对大小写敏感。

HTML 支持的数学符号

字符
实体编号
实体名称
描述

∀
∀
∀
for all

∂
∂
∂
part

∃
∃
∃
exists

∅
∅
∅
empty

∇
∇
∇
nabla

∈
∈
∈
isin

∉
∉
∉
notin

∋
∋
∋
ni

∏
∏
∏
prod

∑
∑
∑
sum

−
−
−
minus

∗
∗
∗
lowast

√
√
√
square root

∝
∝
∝
proportional to

∞
∞
∞
infinity

∠
∠
∠
angle

∧
∧
∧
and

∨
∨
∨
or

∩
∩
∩
cap

∪
∪
∪
cup

∫
∫
∫
integral

∴
∴
∴
therefore

∼
∼
∼
similar to

≅
≅
≅
congruent to

≈
≈
≈
almost equal

≠
≠
≠
not equal

≡
≡
≡
equivalent

≤
≤
≤
less or equal

≥
≥
≥
greater or equal

⊂
⊂
⊂
subset of

⊃
⊃
⊃
superset of

⊄
⊄
⊄
not subset of

⊆
⊆
⊆
subset or equal

⊇
⊇
⊇
superset or equal

⊕
⊕
⊕
circled plus

⊗
⊗
⊗
circled times

⊥
⊥
⊥
perpendicular

⋅
⋅
⋅
dot operator

HTML 支持的希腊字母

字符
实体编号
实体名称
描述

Α
Α
Α
Alpha

Β
Β
Β
Beta

Γ
Γ
Γ
Gamma

Δ
Δ
Δ
Delta

Ε
Ε
Ε
Epsilon

Ζ
Ζ
Ζ
Zeta

Η
Η
Η
Eta

Θ
Θ
Θ
Theta

Ι
Ι
Ι
Iota

Κ
Κ
Κ
Kappa

Λ
Λ
Λ
Lambda

Μ
Μ
Μ
Mu

Ν
Ν
Ν
Nu

Ξ
Ξ
Ξ
Xi

Ο
Ο
Ο
Omicron

Π
Π
Π
Pi

Ρ
Ρ
Ρ
Rho

 
undefined
 
Sigmaf

Σ
Σ
Σ
Sigma

Τ
Τ
Τ
Tau

Υ
Υ
Υ
Upsilon

Φ
Φ
Φ
Phi

Χ
Χ
Χ
Chi

Ψ
Ψ
Ψ
Psi

Ω
Ω
Ω
Omega

       

α
α
α
alpha

β
β
β
beta

γ
γ
γ
gamma

δ
δ
δ
delta

ε
ε
ε
epsilon

ζ
ζ
ζ
zeta

η
η
η
eta

θ
θ
θ
theta

ι
ι
ι
iota

κ
κ
κ
kappa

λ
λ
λ
lambda

μ
μ
μ
mu

ν
ν
ν
nu

ξ
ξ
ξ
xi

ο
ο
ο
omicron

π
π
π
pi

ρ
ρ
ρ
rho

ς
ς
ς
sigmaf

σ
σ
σ
sigma

τ
τ
τ
tau

υ
υ
υ
upsilon

φ
φ
φ
phi

χ
χ
χ
chi

ψ
ψ
ψ
psi

ω
ω
ω
omega

       

ϑ
ϑ
ϑ
theta symbol

ϒ
ϒ
ϒ
upsilon symbol

ϖ
ϖ
ϖ
pi symbol

HTML 支持的其他实体

字符
实体编号
实体名称
描述

Œ
Œ
Œ
capital ligature OE

œ
œ
œ
small ligature oe

Š
Š
Š
capital S with caron

š
š
š
small S with caron

Ÿ
Ÿ
Ÿ
capital Y with diaeres

ƒ
ƒ
ƒ
f with hook

ˆ
ˆ
ˆ
modifier letter circumflex accent

˜
˜
˜
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

•
•
•
bullet

…
…
…
horizontal ellipsis

‰
‰
‰
per mille 

′
′
′
minutes

″
″
″
seconds

‹
‹
‹
single left angle quotation

›
›
›
single right angle quotation

‾
‾
‾
overline

€
€
€
euro

™
™ or ™
™
trademark

←
←
←
left arrow

↑
↑
↑
up arrow

→
→
→
right arrow

↓
↓
↓
down arrow

↔
↔
↔
left right arrow

↵
↵
↵
carriage return arrow

⌈
⌈
⌈
left ceiling

⌉
⌉
⌉
right ceiling

⌊
⌊
⌊
left floor

⌋
⌋
⌋
right floor

◊
◊
◊
lozenge

♠
♠
♠
spade

♣
♣
♣
club

♥
♥
♥
heart

♦
♦
♦
diamond