HTML 符号
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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 | 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 | theta symbol |
| ? | ϒ | ϒ | upsilon symbol |
| ? | 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 | capital ligature OE |
| ? | œ | œ | small ligature oe |
| ? | Š | Š | capital S with caron |
| ? | š | š | small S with caron |
| ? | Ÿ | Ÿ | capital Y with diaeres |
| ? | ƒ | ƒ | f with hook |
| ? | 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 |