http://www.cnblogs.com/roucheng/p/texiao.html
r r --- 小写r Small r
s s --- 小写s Small s
t t --- 小写t Small t
u u --- 小写u Small u
v v --- 小写v Small v
w w --- 小写w Small w
x x --- 小写x Small x
y y --- 小写y Small y
z z --- 小写z Small z
{ { --- 大括号左边部分Left curly brace
| | --- 竖线Vertical bar
} } --- 大括号右边部分Right curly brace
~ ~ --- Tilde
---  --- 未使用Unused
  空格Nonbreaking space
? ¡ ¡ Inverted exclamation
¢ ¢ ¢ 货币分标志Cent sign
£ £ £ 英镑标志Pound sterling
¤ ¤ ¤ 通用货币标志General currency sign
¥ ¥ ¥ 日元标志Yen sign
| ¦ ¦ or &brkbar; 断竖线Broken vertical bar
§ § § 分节号Section sign
¨ ¨ ¨ or ¨ 变音符号Umlaut
? © © 版权标志Copyright
a ª ª Feminine ordinal
? « « Left angle quote, guillemet left
? ¬ ¬ Not sign
¬ ­ ­ Soft hyphen
? ® ® 注册商标标志Registered trademark
ˉ ¯ ¯ or &hibar; 长音符号Macron accent
° ° ° 度数标志Degree sign
± ± ± 加或减Plus or minus
2 ² ² 上标2 Superscrīpt two
3 ³ ³ 上标3 Superscrīpt three
′ ´ ´ 尖重音符Acute accent
μ µ µ Micro sign
? ¶ ¶ Paragraph sign
• · · Middle dot
? ¸ ¸ Cedilla
1 ¹ ¹ 上标1 Superscrīpt one
o º º Masculine ordinal
? » » Right angle quote, guillemet right
? ¼ ¼ 四分之一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
http://www.cnblogs.com/roucheng/p/cssxuanfu.html 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> €