(X)HTML实体保留字符
HTML 4.01 支持 ISO 8859-1 (Latin-1) 字符集。
ISO-8859-1 的较低部分（从 1 到 127 之间的代码）是最初的 7 比特 ASCII。
ISO-8859-1 的较高部分（从 160 到 255 之间的代码）全都有实体名称。
这些符号中的大多数都可以在不进行实体引用的情况下使用，但是实体名称或实体编号为那些不容易通过键盘键入的符号提供了表达的方法。注释：实体名称对大小写敏感。
带有实体名称的 ASCII 实体
结果 描述 实体名称 实体编号
“ quotation mark " "
‘ apostrophe ' '
& ampersand & &
< less-than < <
> greater-than > >
ISO 8859-1 符号实体
结果 描述 实体名称 实体编号
non-breaking space
¡ inverted exclamation mark ¡ ¡
¢ cent ¢ ¢
£ pound £ £
¤ currency ¤ ¤
¥ yen ¥ ¥
¦ broken vertical bar ¦ ¦
§ section § §
¨ spacing diaeresis ¨ ¨
© copyright © ©
ª feminine ordinal indicator ª ª
« angle quotation mark (left) « «
¬ negation ¬ ¬
soft hyphen
® registered 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 字符实体
结果 描述 实体名称 实体编号
À capital a, grave accent À À
Á capital a, acute accent Á Á
 capital a, circumflex accent  Â
à capital a, tilde à 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
HTML 支持的数学符号
结果 描述 实体名称 实体编号
∀ for all ∀ ∀
∂ part ∂ ∂
∃ exists &exists; ∃
∅ empty ∅ ∅
∇ nabla ∇ ∇
∈ isin ∈ ∈
∉ notin ∉ ∉
∋ ni ∋ ∋
∏ prod ∏ ∏
∑ sum ∑ ∑
− minus − −
∗ lowast ∗ ∗
√ square root √ √
∝ proportional to ∝ ∝
∞ infinity ∞ ∞
∠ angle ∠ ∠
∧ and ∧ ∧
∨ or ∨ ∨
∩ cap ∩ ∩
∪ cup ∪ ∪
∫ integral ∫ ∫
∴ therefore ∴ ∴
∼ simular to ∼ ∼
≅ approximately equal ≅ ≅
≈ 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 ⊕ ⊕
⊗ cirled times ⊗ ⊗
⊥ perpendicular ⊥ ⊥
⋅ dot operator ⋅ ⋅
HTML 支持的希腊字母
结果 描述 实体名称 实体编号
Α Alpha Α Α
Β Beta Β Β
Γ Gamma Γ Γ
Δ Delta Δ Δ
Ε Epsilon Ε Ε
Ζ Zeta Ζ Ζ
Η Eta Η Η
Θ Theta Θ Θ
Ι Iota Ι Ι
Κ Kappa Κ Κ
Λ Lambda Λ Λ
Μ Mu Μ Μ
Ν Nu Ν Ν
Ξ Xi Ξ Ξ
Ο Omicron Ο Ο
Π Pi Π Π
Ρ Rho Ρ Ρ
Sigmaf undefined
Σ Sigma Σ Σ
Τ Tau Τ Τ
Υ Upsilon Υ Υ
Φ Phi Φ Φ
Χ Chi Χ Χ
Ψ Psi Ψ Ψ
Ω Omega Ω Ω
α alpha α α
β beta β β
γ gamma γ γ
δ delta δ δ
ε epsilon ε ε
ζ zeta ζ ζ
η eta η η
θ theta θ θ
ι iota ι ι
κ kappa κ κ
λ lambda λ Λ
μ mu μ μ
ν nu ν Ν
ξ xi ξ ξ
ο omicron ο ο
π pi π π
ρ rho ρ ρ
ς sigmaf ς ς
σ sigma σ σ
τ tau τ τ
υ upsilon υ υ
φ phi φ φ
χ chi χ χ
ψ psi ψ ψ
ω omega ω ω
ϑ theta symbol ϑ ϑ
ϒ upsilon symbol ϒ ϒ
ϖ pi symbol ϖ ϖ
HTML 支持的其他实体
结果 描述 实体名称 实体编号
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
ƒ f with hook ƒ ƒ
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 ‡ ‡
• bullet • •
… horizontal ellipsis … …
‰ per mille ‰ ‰
′ minutes ′ ′
″ seconds ″ ″
‹ single left angle quotation ‹ ‹
› single right angle quotation › ›
‾ overline ‾ ‾
€ euro € €
™ 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 ♦ ♦
ISO-8859-1 的较低部分（从 1 到 127 之间的代码）是最初的 7 比特 ASCII。
ISO-8859-1 的较高部分（从 160 到 255 之间的代码）全都有实体名称。
这些符号中的大多数都可以在不进行实体引用的情况下使用，但是实体名称或实体编号为那些不容易通过键盘键入的符号提供了表达的方法。注释：实体名称对大小写敏感。
带有实体名称的 ASCII 实体
结果 描述 实体名称 实体编号
“ quotation mark " "
‘ apostrophe ' '
& ampersand & &
< less-than < <
> greater-than > >
ISO 8859-1 符号实体
结果 描述 实体名称 实体编号
non-breaking space
¡ inverted exclamation mark ¡ ¡
¢ cent ¢ ¢
£ pound £ £
¤ currency ¤ ¤
¥ yen ¥ ¥
¦ broken vertical bar ¦ ¦
§ section § §
¨ spacing diaeresis ¨ ¨
© copyright © ©
ª feminine ordinal indicator ª ª
« angle quotation mark (left) « «
¬ negation ¬ ¬
soft hyphen
® registered 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 字符实体
结果 描述 实体名称 实体编号
À capital a, grave accent À À
Á capital a, acute accent Á Á
 capital a, circumflex accent  Â
à capital a, tilde à 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
HTML 支持的数学符号
结果 描述 实体名称 实体编号
∀ for all ∀ ∀
∂ part ∂ ∂
∃ exists &exists; ∃
∅ empty ∅ ∅
∇ nabla ∇ ∇
∈ isin ∈ ∈
∉ notin ∉ ∉
∋ ni ∋ ∋
∏ prod ∏ ∏
∑ sum ∑ ∑
− minus − −
∗ lowast ∗ ∗
√ square root √ √
∝ proportional to ∝ ∝
∞ infinity ∞ ∞
∠ angle ∠ ∠
∧ and ∧ ∧
∨ or ∨ ∨
∩ cap ∩ ∩
∪ cup ∪ ∪
∫ integral ∫ ∫
∴ therefore ∴ ∴
∼ simular to ∼ ∼
≅ approximately equal ≅ ≅
≈ 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 ⊕ ⊕
⊗ cirled times ⊗ ⊗
⊥ perpendicular ⊥ ⊥
⋅ dot operator ⋅ ⋅
HTML 支持的希腊字母
结果 描述 实体名称 实体编号
Α Alpha Α Α
Β Beta Β Β
Γ Gamma Γ Γ
Δ Delta Δ Δ
Ε Epsilon Ε Ε
Ζ Zeta Ζ Ζ
Η Eta Η Η
Θ Theta Θ Θ
Ι Iota Ι Ι
Κ Kappa Κ Κ
Λ Lambda Λ Λ
Μ Mu Μ Μ
Ν Nu Ν Ν
Ξ Xi Ξ Ξ
Ο Omicron Ο Ο
Π Pi Π Π
Ρ Rho Ρ Ρ
Sigmaf undefined
Σ Sigma Σ Σ
Τ Tau Τ Τ
Υ Upsilon Υ Υ
Φ Phi Φ Φ
Χ Chi Χ Χ
Ψ Psi Ψ Ψ
Ω Omega Ω Ω
α alpha α α
β beta β β
γ gamma γ γ
δ delta δ δ
ε epsilon ε ε
ζ zeta ζ ζ
η eta η η
θ theta θ θ
ι iota ι ι
κ kappa κ κ
λ lambda λ Λ
μ mu μ μ
ν nu ν Ν
ξ xi ξ ξ
ο omicron ο ο
π pi π π
ρ rho ρ ρ
ς sigmaf ς ς
σ sigma σ σ
τ tau τ τ
υ upsilon υ υ
φ phi φ φ
χ chi χ χ
ψ psi ψ ψ
ω omega ω ω
ϑ theta symbol ϑ ϑ
ϒ upsilon symbol ϒ ϒ
ϖ pi symbol ϖ ϖ
HTML 支持的其他实体
结果 描述 实体名称 实体编号
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
ƒ f with hook ƒ ƒ
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 ‡ ‡
• bullet • •
… horizontal ellipsis … …
‰ per mille ‰ ‰
′ minutes ′ ′
″ seconds ″ ″
‹ single left angle quotation ‹ ‹
› single right angle quotation › ›
‾ overline ‾ ‾
€ euro € €
™ 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 ♦ ♦