| 数 值 | 编码表示法 | 含 义 | 表现形式 |
| - | - | Unused | - |
|
| - | HorizontalTab | space |
|
| - | Linefeed | space |
| - | - | Unused | - |
|
| - | Space | space |
| ! | - | Exclamationmark | ! |
| " | " | Quotationmark | " |
| # | - | Numbersign | # |
| $ | - | Dollarsign | $ |
| % | - | Percentsign | % |
| & | & | Ampersand | & |
| ' | - | Apostrophe | ' |
| ( | - | Leftparenthesis | ( |
| ) | - | Rightparenthesis | ) |
| * | - | Asterisk | * |
| + | - | Plussign | + |
| , | - | Comma | , |
| - | - | Hyphen | - |
| . | - | Period(fullstop) | . |
| / | - | Solidus(slash) | / |
| 0-9 | - | Digits(0-9) | 0-9 |
| : | - | Colon | : |
| ; | - | Semi-colon | ; |
| < | < | Lessthan | < |
| = | - | Equalssign | = |
| > | > | Greaterthan | > |
| ? | - | Questionmark | ? |
| @ | - | Commercialat | @ |
| A-Z | - | UppercaseA-Z | A-Z |
| [ | - | Leftsquarebracket | [ |
| \ | - | Reversesolidus(backslash) | \ |
| ] | - | Rightsquarebracket | ] |
| ^ | - | Caret | ^ |
| _ | - | Horizontalbar | _ |
| ` | - | Acuteaccent | ` |
| a-z | - | Lowercasea-z | a-z |
| { | - | Leftcurlybrace | { |
| | | - | Verticalbar | | |
| } | - | Rightcurlybrace | } |
| ~ | - | Tilde | ~ |
| -Ÿ | - | Unused | - |
|
|
| Non-breakingspace | |
| ¡ | ¡ | Invertedexclamation | ¡ |
| ¢ | ¢ | Centsign | ¢ |
| £ | £ | Poundsterlingsign | £ |
| ¤ | ¤ | Generalcurrencysign | ¤ |
| ¥ | ¥ | Yensign | ¥ |
| ¦ | ¦ | Brokenverticalbar | ¦ |
| § | § | Sectionsign | § |
| ¨ | ¨ | Umlaut(dierisis) | ¨ |
| © | © | Copyright | © |
| ª | ª | Feminineordinal | ª |
| « | « | Leftanglequote,guillemotleft | « |
| ¬ | ¬ | Notsign | ¬ |
| | | Softhyphen | |
| ® | ® | Registeredtrademark | ® |
| ¯ | ¯ | Macronaccent | ¯ |
| ° | ° | Degreesign | ° |
| ± | ± | Plusorminus | ± |
| ² | ² | Superscripttwo | ² |
| ³ | ³ | Superscriptthree | ³ |
| ´ | ´ | Acuteaccent | ´ |
| µ | µ | Microsign | µ |
| ¶ | ¶ | Paragraphsign | ¶ |
| · | · | Middledot | · |
| ¸ | ¸ | Cedilla | ¸ |
| ¹ | ¹ | Superscriptone | ¹ |
| º | º | Masculineordinal | º |
| » | » | Rightanglequote,guillemotright | » |
| ¼ | ¼ | Fraction(onequarter) | ¼ |
| ½ | ½ | Fraction(onehalf) | ½ |
| ¾ | ¾ | Fraction(threequarters) | ¾ |
| ¿ | ¿ | Invertedquestionmark | ¿ |
| À | À | CapitalA,graveaccent | À |
| Á | Á | CapitalA,acuteaccent | Á |
| Â | Â | CapitalA,circumflexaccent | Â |
| Ã | Ã | CapitalA,tilde | Ã |
| Ä | Ä | CapitalA,umlaut(dierisis) | Ä |
| Å | Å | CapitalA,ring | Å |
| Æ | Æ | CapitalAEdipthong(ligature) | Æ |
| Ç | Ç | CapitalC,cedilla | Ç |
| È | È | CapitalE,graveaccent | È |
| É | É | CapitaE,acuteaccent | É |
| Ê | Ê | CapitalE,circumflexaccent | Ê |
| Ë | Ë | CapitalE,umlaut(dierisis) | Ë |
| Ì | Ì | CapitalI,graveaccent | Ì |
| Í | Í | CapitalI,acuteaccent | Í |
| Î | Î | CapitalI,circumflexaccent | Î |
| Ï | Ï | CapitalI,umlaut(dierisis) | Ï |
| Ð | Ð | CapitalEth,Icelandic | Ð |
| Ñ | Ñ | CapitalN,tilde | Ñ |
| Ò | Ò | CapitalO,graveaccent | Ò |
| Ó | Ó | CapitalO,acuteaccent | Ó |
| Ô | Ô | CapitalO,circumflexaccent | Ô |
| Õ | Õ | CapitalO,tilde | Õ |
| Ö | Ö | CapitalO,umlaut(dierisis) | Ö |
| × | × | Multiplysign | × |
| Ø | Ø | CapitalO,slash | Ø |
| Ù | Ù | CapitalU,graveaccent | Ù |
| Ú | Ú | CapitalU,acuteaccent | Ú |
| Û | Û | CapitalU,circumflexaccent | Û |
| Ü | Ü | CapitalU,umlaut(dierisis) | Ü |
| Ý | Ý | CapitalY,acuteaccent | Ý |
| Þ | Þ | CapitalThorn,Icelandic | Þ |
| ß | ß | Smallsharps,German(szligature) | ß |
| à | à | Smalla,graveaccent | à |
| á | á | Smalla,acuteaccent | á |
| â | â | Smalla,circumflexaccent | â |
| ã | ã | Smalla,tilde | ã |
| ä | ä | Smalla,umlaut(dierisis) | ä |
| å | å | Smalla,ring | å |
| æ | æ | Smallaedipthong(ligature) | æ |
| ç | ç | Smallc,cedilla | ç |
| è | è | Smalle,graveaccent | è |
| é | é | Smalle,acuteaccent | é |
| ê | ê | Smalle,circumflexaccent | ê |
| ë | ë | Smalle,umlaut(dierisis) | ë |
| ì | ì | Smalli,graveaccent | ì |
| í | í | Smalli,acuteaccent | í |
| î | î | Smalli,circumflexaccent | î |
| ï | ï | Smalli,umlaut(dierisis) | ï |
| ð | ð | Smalleth,Icelandic | ð |
| ñ | ñ | Smalln,tilde | ñ |
| ò | ò | Smallo,graveaccent | òò |
| ó | ó | Smallo,acuteaccent | ó |
| ô | ô | Smallo,circumflexaccent | ô |
| õ | õ | Smallo,tilde | õ |
| ö | ö | Smallo,umlaut(dierisis) | ö |
| ÷ | ÷ | Divisionsign | ÷ |
| ø | ø | Smallo,slash | ø |
| ù | ù | Smallu,graveaccent | ù |
| ú | ú | Smallu,acuteaccent | ú |
| û | û | Smallu,circumflexaccent | û |
| ü | ü | Smallu,umlaut(dierisis) | ü |
| ý | ý | Smally,acuteaccent | ý |
| þ | þ | Smallthorn,Icelandic | þ |
| ÿ | ÿ | Smally,umlaut(dierisis) | ÿ |
© 2000 Some Co., Inc.:用©表示版权标识信息。
© 2000 Some Co., Inc.:用©同样标识版权标识信息。
对不被信任的数据进行编码要优于过滤不被信任的数据。在客户端浏览器需要显示一些特殊字符的情况下,这种处理方式会恢复特殊字符的庐山真面目。当然,对所有不被信任的数据进行编码,是个相当耗费资源的工作。根据需要,Web开发者可以在编码和过滤2种方法中进行权衡,选择一种或者混合使用。