本文详细介绍如何在HTML中使用特殊字符和符号，包括使用实体名称和数字代码两种方式。文章提供了一个短表格，列出最常用的特殊字符及其对应的HTML代码，并附有完整的特殊字符列表。此外，还介绍了在Windows应用程序中通过数字键盘输入这些字符的方法。
You may often need special characters that are not on your keyboard. To create these, you use codes.
There are two systems: Code and Entity. Entity is easier to use. Just remember that you place an ampersand first, the abbreviation for the character (such as "amp" for ampersand), and then a semicolon to close. For example, to produce an ampersand (&), type & in your HTML and it will appear as & in your browser.
Note: You can also enter characters via the numeric keypad into any Windows program. See the instructions and table at the end of this document.
Short Table With the Most Useful Characters
Description Char Code Entity _____________________________________________ Quotation " " " Ampersand & & & Less-than sign < < < Greater-than sign > > > at symbol @ @ Euro € € Dagger † † 0/00 ‰ ‰ Trademark ™ ™ Angle quote mark, left « « « Angle quote mark, right » » » Inverted exclamation ¡ ¡ ¡ Inverted question mark ¿ ¿ ¿ Cent sign ¢ ¢ ¢ Pound sign £ £ £ Currency sign ¤ ¤ ¤ Yen sign ¥ ¥ ¥ Broken vertical bar ¦ ¦ ¦ Section sign § § § Copyright sign © © © Circled R registered sign ® ® ® Middle dot · · · Fraction 1/4 ¼ ¼ ¼ Fraction 1/2 ½ ½ ½ Fraction 3/4 ¾ ¾ ¾ Superscript 1 ¹ ¹ ¹ Superscript 2 ² ² ² Superscript 3 ³ ³ ³ Degree sign ° ° ° Multiplication sign × × × Division sign ÷ ÷ ÷ Plus-or-minus sign ± ± ±
The Complete List of Special Characters
Description Char Code Entity name =================================================== Quotation " " " Ampersand & & & Less-than sign < < < Greater-than sign > > > Non-breaking space   Inverted exclamation ¡ ¡ ¡ Cent sign ¢ ¢ ¢ Pound sign £ £ £ Currency sign ¤ ¤ ¤ Yen sign ¥ ¥ ¥ Broken vertical bar ¦ ¦ ¦ Section sign § § § Spacing diaresis ¨ ¨ ¨ Copyright sign © © © Feminine ordinal indicator ª ª ª Angle quotation mark, left « « « Negation sign ¬ ¬ ¬ Soft hyphen ­ ­ Circled R registered sign ® ® ® Spacing macron ¯ ¯ &hibar; Degree sign ° ° ° Plus-or-minus sign ± ± ± Superscript 1 ¹ ¹ ¹ Superscript 2 ² ² ² Superscript 3 ³ ³ ³ Spacing acute ´ ´ ´ Micro sign µ µ µ Paragraph sign ¶ ¶ ¶ Middle dot · · · Spacing cedilla ¸ ¸ ¸ Masculine ordinal indicator º º º Angle quotation mark, right » » » Fraction 1/4 ¼ ¼ ¼ Fraction 1/2 ½ ½ ½ Fraction 3/4 ¾ ¾ ¾ Inverted question mark ¿ ¿ ¿ Capital A, grave accent À À À Capital A, acute accent Á Á Á Capital A, circumflex accent    Capital A, tilde à à à Capital A, dieresis (umlaut) Ä Ä Ä Capital A, ring Å Å Å Capital AE diphthong (ligature) Æ Æ Æ Capital C, cedilla Ç Ç Ç Capital E, grave accent È È È Capital E, acute accent É É É Capital E, circumflex accent Ê Ê Ê Capital E, dieresis (umlaut) Ë Ë Ë Capital I, grave accent Ì Ì Ì Capital I, acute accent Í Í Í Capital I, circumflex accent Î Î Î Capital I, dieresis (umlaut) Ï Ï Ï Capital Eth, Icelandic Ð Ð Ð Capital N, tilde Ñ Ñ Ñ Capital O, grave accent Ò Ò Ò Capital O, acute accent Ó Ó Ó Capital O, circumflex accent Ô Ô Ô Capital O, tilde Õ Õ Õ Capital O, dieresis (umlaut) Ö Ö Ö Multiplication sign × × × Capital O, slash Ø Ø Ø Capital U, grave accent Ù Ù Ù Capital U, acute accent Ú Ú Ú Capital U, circumflex accent Û Û Û Capital U, dieresis (umlaut) Ü Ü Ü Capital Y, acute accent Ý Ý Ý Capital THORN, Icelandic Þ Þ Þ Small sharp German sz ligature ß ß ß Small a, grave accent à à à Small a, acute accent á á á Small a, circumflex accent â â â Small a, tilde ã ã ã Small a, dieresis (umlaut) ä ä ä Small a, ring å å å Small ae diphthong (ligature) æ æ æ Small c, cedilla ç ç ç Small e, grave accent è è è Small e, acute accent é é é Small e, circumflex accent ê ê ê Small e, dieresis (umlaut) ë ë ë Small i, grave accent ì ì ì Small i, acute accent í í í Small i, circumflex accent î î î Small i, dieresis (umlaut) ï ï ï Small eth, Icelandic ð ð ð Small n, tilde ñ ñ ñ Small o, grave accent ò ò ò Small o, acute accent ó ó ó Small o, circumflex accent ô ô ô Small o, tilde õ õ õ Small o, dieresis (umlaut) ö ö ö Division sign ÷ ÷ ÷ Small o, slash ø ø ø Small u, grave accent ù ù ù Small u, acute accent ú ú ú Small u, circumflex accent û û û Small u, dieresis (umlaut) ü ü ü Small y, acute accent ý ý ý Small thorn, Icelandic þ þ þ Small y, dieresis (umlaut) ÿ ÿ ÿ
Inserting Symbols in Windows
In any Windows application, you can insert characters via the numeric keypad:
- Press the Num Lock key (above the numeric keypad) to turn on NumLock. (To test: press 5 in the numeric keypad. If a 5 appears in your document, NumLock is on. If no 5, press NumLock and try again.)
- Select the font.
- Look at the following table of characters.
- Hold down the Alt key and type the character code on the numeric keypad. Example: To insert w (code 0119), type Alt+0119.
- Release the Alt key.
Character Codes for the Numeric Keypad
0033 ! 00070 F 00107 k 00144 00181 µ 00218 Ú
0034 " 00071 G 00108 l 00145 ' 00182 ¶ 00219 Û
0035 # 00072 H 00109 m 00146 ' 00183 · 00220 Ü
0036 $ 00073 I 00110 n 00147 " 00184 ¸ 00221 Ý
0037 % 00074 J 00111 o 00148 " 00185 ¹ 00222 Þ
0038 & 00075 K 00112 p 00149 00186 º 00223 ß
0039 ' 00076 L 00113 q 00150 - 00187 » 00224 à
0040 ( 00077 M 00114 r 00151 - 00188 ¼ 00225 á
0041 ) 00078 N 00115 s 00152 ˜ 00189 ½ 00226 â
0042 * 00079 O 00116 t 00153 ™ 00190 ¾ 00227 ã
0043 + 00080 P 00117 u 00154 š 00191 ¿ 00228 ä
0044 , 00081 Q 00118 v 00155 › 00192 À 00229 å
0045 - 00082 R 00119 w 00156 œ 00193 Á 00230 æ
0046 . 00083 S 00120 x 00157 00194 Â 00231 ç
0047 / 00084 T 00121 y 00158 00195 Ã 00232 è
0048 0 00085 U 00122 z 00159 Ÿ 00196 Ä 00233 é
0049 1 00086 V 00123 { 00160 00197 Å 00234 ê
0050 2 00087 W 00124 | 00161 ¡ 00198 Æ 00235 ë
0051 3 00088 X 00125 } 00162 ¢ 00199 Ç 00236 ì
0052 4 00089 Y 00126 ~ 00163 £ 00200 È 00237 í
0053 5 00090 Z 00127 00164 ¤ 00201 É 00238 î
0054 6 00091 [ 00128 00165 ¥ 00202 Ê 00239 ï
0055 7 00092 \ 00129 00166 ¦ 00203 Ë 00240 ð
0056 8 00093 ] 00130 ‚ 00167 § 00204 Ì 00241 ñ
0057 9 00094 ^ 00131 ƒ 00168 ¨ 00205 Í 00242 ò
0058 : 00095 _ 00132 „ 00169 © 00206 Î 00243 ó
0059 ; 00096 ` 00133 ... 00170 ª 00207 Ï 00244 ô
0060 < 00097 a 00134 † 00171 « 00208 Ð 00245 õ
0061 = 00098 b 00135 ‡ 00172 ¬ 00209 Ñ 00246 ö
0062 > 00099 c 00136 ˆ 00173 00210 Ò 00247 ÷
0063 ? 00100 d 00137 ‰ 00174 ® 00211 Ó 00248 ø
0064 @ 00101 e 00138 Š 00175 ¯ 00212 Ô 00249 ù
0065 A 00102 f 00139 ‹ 00176 ° 00213 Õ 00250 ú
0066 B 00103 g 00140 Œ 00177 ± 00214 Ö 00251 û
0067 C 00104 h 00141 00178 ² 00215 × 00252 ü
0068 D 00105 i 00142 00179 ³ 00216 Ø 00253 ý
0069 E 00106 j 00143 00180 ´ 00217 Ù 00254 þ
转自：http://andreas.com/faq-char.html
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