摘自：http://www.w3schools.com/tags/ref_symbols.asp

?

Math Symbols Supported by HTML

CharacterEntity NumberEntity NameDescription

?	∀	∀	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

Greek Letters Supported by HTML

CharacterEntity NumberEntity NameDescription

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

Other Entities Supported by HTML

CharacterEntity NumberEntity NameDescription

?	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

轉載于:https://www.cnblogs.com/2boy/p/3186228.html

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