%253C代表< %2520代表空格等等这是什么语言怎么转换的

如%253C代表< %2520代表空格 %253E代表> 似乎可以代替html里的字符和符号,请问这是什么语言? 或者他是通过什么转换的? 有没有什么转换图表或者转换工具。比如就像字符和ascii和hex的转换工具那样。

它用的是ISO Latin-1字符集的值,你把说要字符的值前面加上25就可以了。
可以参照 http://topic.csdn.net/t/20040718/18/3186163.html
或对照下表 [][]代表不是符号。
0x00 0x0000 [ ] [ ] NULL
0x01 0x0001 [ ] [ ] START OF HEADING
0x02 0x0002 [ ] [ ] START OF TEXT
0x03 0x0003 [ ] [ ] END OF TEXT
0x04 0x0004 [ ] [ ] END OF TRANSMISSION
0x05 0x0005 [ ] [ ] ENQUIRY
0x06 0x0006 [ ] [ ] ACKNOWLEDGE
0x07 0x0007 [ ] [ ] BELL
0x08 0x0008 [ ] [ ] BACKSPACE
0x09 0x0009 [ ] [ ] HORIZONTAL TABULATION
0x0A 0x000A [ ] [ ] LINE FEED
0x0B 0x000B [ ] [ ] VERTICAL TABULATION
0x0C 0x000C [ ] [ ] FORM FEED
0x0D 0x000D [ ] [ ] CARRIAGE RETURN
0x0E 0x000E [ ] [ ] SHIFT OUT
0x0F 0x000F [ ] [ ] SHIFT IN
0x10 0x0010 [ ] [ ] DATA LINK ESCAPE
0x11 0x0011 [ ] [ ] DEVICE CONTROL ONE
0x12 0x0012 [ ] [ ] DEVICE CONTROL TWO
0x13 0x0013 [ ] [ ] DEVICE CONTROL THREE
0x14 0x0014 [ ] [ ] DEVICE CONTROL FOUR
0x15 0x0015 [ ] [ ] NEGATIVE ACKNOWLEDGE
0x16 0x0016 [ ] [ ] SYNCHRONOUS IDLE
0x17 0x0017 [ ] [ ] END OF TRANSMISSION BLOCK
0x18 0x0018 [ ] [ ] CANCEL
0x19 0x0019 [ ] [ ] END OF MEDIUM
0x1A 0x001A [ ] [ ] SUBSTITUTE
0x1B 0x001B [ ] [ ] ESCAPE
0x1C 0x001C [ ] [ ] FILE SEPARATOR
0x1D 0x001D [ ] [ ] GROUP SEPARATOR
0x1E 0x001E [ ] [ ] RECORD SEPARATOR
0x1F 0x001F [ ] [ ] UNIT SEPARATOR
0x20 0x0020 [ ] [ ] SPACE
0x21 0x0021 [!] [!] EXCLAMATION MARK
0x22 0x0022 ["] ["] QUOTATION MARK
0x23 0x0023 [#] [#] NUMBER SIGN
0x24 0x0024 [$] [$] DOLLAR SIGN
0x25 0x0025 [%] [%] PERCENT SIGN
0x26 0x0026 [&] [&] AMPERSAND
0x27 0x0027 ['] ['] APOSTROPHE
0x28 0x0028 [(] [(] LEFT PARENTHESIS
0x29 0x0029 [)] [)] RIGHT PARENTHESIS
0x2A 0x002A [*] [*] ASTERISK
0x2B 0x002B [+] [+] PLUS SIGN
0x2C 0x002C [,] [,] COMMA
0x2D 0x002D [-] [-] HYPHEN-MINUS
0x2E 0x002E [.] [.] FULL STOP
0x2F 0x002F [/] [/] SOLIDUS
0x30 0x0030 [0] [0] DIGIT ZERO
0x31 0x0031 [1] [1] DIGIT ONE
0x32 0x0032 [2] [2] DIGIT TWO
0x33 0x0033 [3] [3] DIGIT THREE
0x34 0x0034 [4] [4] DIGIT FOUR
0x35 0x0035 [5] [5] DIGIT FIVE
0x36 0x0036 [6] [6] DIGIT SIX
0x37 0x0037 [7] [7] DIGIT SEVEN
0x38 0x0038 [8] [8] DIGIT EIGHT
0x39 0x0039 [9] [9] DIGIT NINE
0x3A 0x003A [:] [:] COLON
0x3B 0x003B [;] [;] SEMICOLON
0x3C 0x003C [<] [<] LESS-THAN SIGN
0x3D 0x003D [=] [=] EQUALS SIGN
0x3E 0x003E [>] [>] GREATER-THAN SIGN
0x3F 0x003F [?] [?] QUESTION MARK
0x40 0x0040 [@] [@] COMMERCIAL AT
0x41 0x0041 [A] [A] LATIN CAPITAL LETTER A
0x42 0x0042 [B] [B] LATIN CAPITAL LETTER B
0x43 0x0043 [C] [C] LATIN CAPITAL LETTER C
0x44 0x0044 [D] [D] LATIN CAPITAL LETTER D
0x45 0x0045 [E] [E] LATIN CAPITAL LETTER E
0x46 0x0046 [F] [F] LATIN CAPITAL LETTER F
0x47 0x0047 [G] [G] LATIN CAPITAL LETTER G
0x48 0x0048 [H] [H] LATIN CAPITAL LETTER H
0x49 0x0049 [I] [I] LATIN CAPITAL LETTER I
0x4A 0x004A [J] [J] LATIN CAPITAL LETTER J
0x4B 0x004B [K] [K] LATIN CAPITAL LETTER K
0x4C 0x004C [L] [L] LATIN CAPITAL LETTER L
0x4D 0x004D [M] [M] LATIN CAPITAL LETTER M
0x4E 0x004E [N] [N] LATIN CAPITAL LETTER N
0x4F 0x004F [O] [O] LATIN CAPITAL LETTER O
0x50 0x0050 [P] [P] LATIN CAPITAL LETTER P
0x51 0x0051 [Q] [Q] LATIN CAPITAL LETTER Q
0x52 0x0052 [R] [R] LATIN CAPITAL LETTER R
0x53 0x0053 [S] [S] LATIN CAPITAL LETTER S
0x54 0x0054 [T] [T] LATIN CAPITAL LETTER T
0x55 0x0055 [U] [U] LATIN CAPITAL LETTER U
0x56 0x0056 [V] [V] LATIN CAPITAL LETTER V
0x57 0x0057 [W] [W] LATIN CAPITAL LETTER W
0x58 0x0058 [X] [X] LATIN CAPITAL LETTER X
0x59 0x0059 [Y] [Y] LATIN CAPITAL LETTER Y
0x5A 0x005A [Z] [Z] LATIN CAPITAL LETTER Z
0x5B 0x005B [[] [[] LEFT SQUARE BRACKET
0x5C 0x005C [\] [\] REVERSE SOLIDUS
0x5D 0x005D []] []] RIGHT SQUARE BRACKET
0x5E 0x005E [^] [^] CIRCUMFLEX ACCENT
0x5F 0x005F [_] [_] LOW LINE
0x60 0x0060 [`] [`] GRAVE ACCENT
0x61 0x0061 [a] [a] LATIN SMALL LETTER A
0x62 0x0062 [b] [b] LATIN SMALL LETTER B
0x63 0x0063 [c] [c] LATIN SMALL LETTER C
0x64 0x0064 [d] [d] LATIN SMALL LETTER D
0x65 0x0065 [e] [e] LATIN SMALL LETTER E
0x66 0x0066 [f] [f] LATIN SMALL LETTER F
0x67 0x0067 [g] [g] LATIN SMALL LETTER G
0x68 0x0068 [h] [h] LATIN SMALL LETTER H
0x69 0x0069 [i] [i] LATIN SMALL LETTER I
0x6A 0x006A [j] [j] LATIN SMALL LETTER J
0x6B 0x006B [k] [k] LATIN SMALL LETTER K
0x6C 0x006C [l] [l] LATIN SMALL LETTER L
0x6D 0x006D [m] [m] LATIN SMALL LETTER M
0x6E 0x006E [n] [n] LATIN SMALL LETTER N
0x6F 0x006F [o] [o] LATIN SMALL LETTER O
0x70 0x0070 [p] [p] LATIN SMALL LETTER P
0x71 0x0071 [q] [q] LATIN SMALL LETTER Q
0x72 0x0072 [r] [r] LATIN SMALL LETTER R
0x73 0x0073 [s] [s] LATIN SMALL LETTER S
0x74 0x0074 [t] [t] LATIN SMALL LETTER T
0x75 0x0075 [u] [u] LATIN SMALL LETTER U
0x76 0x0076 [v] [v] LATIN SMALL LETTER V
0x77 0x0077 [w] [w] LATIN SMALL LETTER W
0x78 0x0078 [x] [x] LATIN SMALL LETTER X
0x79 0x0079 [y] [y] LATIN SMALL LETTER Y
0x7A 0x007A [z] [z] LATIN SMALL LETTER Z
0x7B 0x007B [{] [{] LEFT CURLY BRACKET
0x7C 0x007C [|] [|] VERTICAL LINE
0x7D 0x007D [}] [}] RIGHT CURLY BRACKET
0x7E 0x007E [~] [~] TILDE
0x7F 0x007F [ ] [ ] DELETE
0x80 0x0080 [ ] [ ] <control>
0x81 0x0081 [ ] [ ] <control>
0x82 0x0082 [ ] [ ] <control>
0x83 0x0083 [ ] [ ] <control>
0x84 0x0084 [ ] [ ] <control>
0x85 0x0085 [ ] [ ] <control>
0x86 0x0086 [ ] [ ] <control>
0x87 0x0087 [ ] [ ] <control>
0x88 0x0088 [ ] [ ] <control>
0x89 0x0089 [ ] [ ] <control>
0x8A 0x008A [ ] [ ] <control>
0x8B 0x008B [ ] [ ] <control>
0x8C 0x008C [ ] [ ] <control>
0x8D 0x008D [ ] [ ] <control>
0x8E 0x008E [ ] [ ] <control>
0x8F 0x008F [ ] [ ] <control>
0x90 0x0090 [ ] [ ] <control>
0x91 0x0091 [ ] [ ] <control>
0x92 0x0092 [ ] [ ] <control>
0x93 0x0093 [ ] [ ] <control>
0x94 0x0094 [ ] [ ] <control>
0x95 0x0095 [ ] [ ] <control>
0x96 0x0096 [ ] [ ] <control>
0x97 0x0097 [ ] [ ] <control>
0x98 0x0098 [ ] [ ] <control>
0x99 0x0099 [ ] [ ] <control>
0x9A 0x009A [ ] [ ] <control>
0x9B 0x009B [ ] [ ] <control>
0x9C 0x009C [ ] [ ] <control>
0x9D 0x009D [ ] [ ] <control>
0x9E 0x009E [ ] [ ] <control>
0x9F 0x009F [ ] [ ] <control>
0xA0 0x00A0 [ ] [ ] NO-BREAK SPACE
0xA1 0x00A1 [¡] [¡] INVERTED EXCLAMATION MARK
0xA2 0x00A2 [¢] [¢] CENT SIGN
0xA3 0x00A3 [£] [£] POUND SIGN
0xA4 0x00A4 [¤] [¤] CURRENCY SIGN
0xA5 0x00A5 [¥] [¥] YEN SIGN
0xA6 0x00A6 [¦] [¦] BROKEN BAR
0xA7 0x00A7 [§] [§] SECTION SIGN
0xA8 0x00A8 [¨] [¨] DIAERESIS
0xA9 0x00A9 [©] [©] COPYRIGHT SIGN
0xAA 0x00AA [ª] [ª] FEMININE ORDINAL INDICATOR
0xAB 0x00AB [«] [«] LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
0xAC 0x00AC [¬] [¬] NOT SIGN
0xAD 0x00AD [ ] [ ] SOFT HYPHEN
0xAE 0x00AE [®] [®] REGISTERED SIGN
0xAF 0x00AF [¯] [¯] MACRON
0xB0 0x00B0 [°] [°] DEGREE SIGN
0xB1 0x00B1 [±] [±] PLUS-MINUS SIGN
0xB2 0x00B2 [²] [²] SUPERSCRIPT TWO
0xB3 0x00B3 [³] [³] SUPERSCRIPT THREE
0xB4 0x00B4 [´] [´] ACUTE ACCENT
0xB5 0x00B5 [µ] [µ] MICRO SIGN
0xB6 0x00B6 [¶] [¶] PILCROW SIGN
0xB7 0x00B7 [·] [·] MIDDLE DOT
0xB8 0x00B8 [¸] [¸] CEDILLA
0xB9 0x00B9 [¹] [¹] SUPERSCRIPT ONE
0xBA 0x00BA [º] [º] MASCULINE ORDINAL INDICATOR
0xBB 0x00BB [»] [»] RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
0xBC 0x00BC [¼] [¼] VULGAR FRACTION ONE QUARTER
0xBD 0x00BD [½] [½] VULGAR FRACTION ONE HALF
0xBE 0x00BE [¾] [¾] VULGAR FRACTION THREE QUARTERS
0xBF 0x00BF [¿] [¿] INVERTED QUESTION MARK
0xC0 0x00C0 [À] [À] LATIN CAPITAL LETTER A WITH GRAVE
0xC1 0x00C1 [Á] [Á] LATIN CAPITAL LETTER A WITH ACUTE
0xC2 0x00C2 [Â] [Â] LATIN CAPITAL LETTER A WITH CIRCUMFLEX
0xC3 0x00C3 [Ã] [Ã] LATIN CAPITAL LETTER A WITH TILDE
0xC4 0x00C4 [Ä] [Ä] LATIN CAPITAL LETTER A WITH DIAERESIS
0xC5 0x00C5 [Å] [Å] LATIN CAPITAL LETTER A WITH RING ABOVE
0xC6 0x00C6 [Æ] [Æ] LATIN CAPITAL LETTER AE
0xC7 0x00C7 [Ç] [Ç] LATIN CAPITAL LETTER C WITH CEDILLA
0xC8 0x00C8 [È] [È] LATIN CAPITAL LETTER E WITH GRAVE
0xC9 0x00C9 [É] [É] LATIN CAPITAL LETTER E WITH ACUTE
0xCA 0x00CA [Ê] [Ê] LATIN CAPITAL LETTER E WITH CIRCUMFLEX
0xCB 0x00CB [Ë] [Ë] LATIN CAPITAL LETTER E WITH DIAERESIS
0xCC 0x00CC [Ì] [Ì] LATIN CAPITAL LETTER I WITH GRAVE
0xCD 0x00CD [Í] [Í] LATIN CAPITAL LETTER I WITH ACUTE
0xCE 0x00CE [Î] [Î] LATIN CAPITAL LETTER I WITH CIRCUMFLEX
0xCF 0x00CF [Ï] [Ï] LATIN CAPITAL LETTER I WITH DIAERESIS
0xD0 0x00D0 [Ð] [Ð] LATIN CAPITAL LETTER ETH (Icelandic)
0xD1 0x00D1 [Ñ] [Ñ] LATIN CAPITAL LETTER N WITH TILDE
0xD2 0x00D2 [Ò] [Ò] LATIN CAPITAL LETTER O WITH GRAVE
0xD3 0x00D3 [Ó] [Ó] LATIN CAPITAL LETTER O WITH ACUTE
0xD4 0x00D4 [Ô] [Ô] LATIN CAPITAL LETTER O WITH CIRCUMFLEX
0xD5 0x00D5 [Õ] [Õ] LATIN CAPITAL LETTER O WITH TILDE
0xD6 0x00D6 [Ö] [Ö] LATIN CAPITAL LETTER O WITH DIAERESIS
0xD7 0x00D7 [×] [×] MULTIPLICATION SIGN
0xD8 0x00D8 [Ø] [Ø] LATIN CAPITAL LETTER O WITH STROKE
0xD9 0x00D9 [Ù] [Ù] LATIN CAPITAL LETTER U WITH GRAVE
0xDA 0x00DA [Ú] [Ú] LATIN CAPITAL LETTER U WITH ACUTE
0xDB 0x00DB [Û] [Û] LATIN CAPITAL LETTER U WITH CIRCUMFLEX
0xDC 0x00DC [Ü] [Ü] LATIN CAPITAL LETTER U WITH DIAERESIS
0xDD 0x00DD [Ý] [Ý] LATIN CAPITAL LETTER Y WITH ACUTE
0xDE 0x00DE [Þ] [Þ] LATIN CAPITAL LETTER THORN (Icelandic)
0xDF 0x00DF [ß] [ß] LATIN SMALL LETTER SHARP S (German)
0xE0 0x00E0 [à] [à] LATIN SMALL LETTER A WITH GRAVE
0xE1 0x00E1 [á] [á] LATIN SMALL LETTER A WITH ACUTE
0xE2 0x00E2 [â] [â] LATIN SMALL LETTER A WITH CIRCUMFLEX
0xE3 0x00E3 [ã] [ã] LATIN SMALL LETTER A WITH TILDE
0xE4 0x00E4 [ä] [ä] LATIN SMALL LETTER A WITH DIAERESIS
0xE5 0x00E5 [å] [å] LATIN SMALL LETTER A WITH RING ABOVE
0xE6 0x00E6 [æ] [æ] LATIN SMALL LETTER AE
0xE7 0x00E7 [ç] [ç] LATIN SMALL LETTER C WITH CEDILLA
0xE8 0x00E8 [è] [è] LATIN SMALL LETTER E WITH GRAVE
0xE9 0x00E9 [é] [é] LATIN SMALL LETTER E WITH ACUTE
0xEA 0x00EA [ê] [ê] LATIN SMALL LETTER E WITH CIRCUMFLEX
0xEB 0x00EB [ë] [ë] LATIN SMALL LETTER E WITH DIAERESIS
0xEC 0x00EC [ì] [ì] LATIN SMALL LETTER I WITH GRAVE
0xED 0x00ED [í] [í] LATIN SMALL LETTER I WITH ACUTE
0xEE 0x00EE [î] [î] LATIN SMALL LETTER I WITH CIRCUMFLEX
0xEF 0x00EF [ï] [ï] LATIN SMALL LETTER I WITH DIAERESIS
0xF0 0x00F0 [ð] [ð] LATIN SMALL LETTER ETH (Icelandic)
0xF1 0x00F1 [ñ] [ñ] LATIN SMALL LETTER N WITH TILDE
0xF2 0x00F2 [ò] [ò] LATIN SMALL LETTER O WITH GRAVE
0xF3 0x00F3 [ó] [ó] LATIN SMALL LETTER O WITH ACUTE
0xF4 0x00F4 [ô] [ô] LATIN SMALL LETTER O WITH CIRCUMFLEX
0xF5 0x00F5 [õ] [õ] LATIN SMALL LETTER O WITH TILDE
0xF6 0x00F6 [ö] [ö] LATIN SMALL LETTER O WITH DIAERESIS
0xF7 0x00F7 [÷] [÷] DIVISION SIGN
0xF8 0x00F8 [ø] [ø] LATIN SMALL LETTER O WITH STROKE
0xF9 0x00F9 [ù] [ù] LATIN SMALL LETTER U WITH GRAVE
0xFA 0x00FA [ú] [ú] LATIN SMALL LETTER U WITH ACUTE
0xFB 0x00FB [û] [û] LATIN SMALL LETTER U WITH CIRCUMFLEX
0xFC 0x00FC [ü] [ü] LATIN SMALL LETTER U WITH DIAERESIS
0xFD 0x00FD [ý] [ý] LATIN SMALL LETTER Y WITH ACUTE
0xFE 0x00FE [þ] [þ] LATIN SMALL LETTER THORN (Icelandic)
0xFF 0x00FF [ÿ] [ÿ] LATIN SMALL LETTER Y WITH DIAERESIS
[orWell.ru Tests] [ISO]
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