r-`M“字符查编码

132
查询字符
“r-`M“”字符编码信息
r-`M“
Unicode(10进制): 114 Unicode(16进制): U+0072 HTML实体(10进制): r HTML实体(16进制): r JavaScript(ASCII): \u72 CSS: \72 Unicode所属区间: C0控制符及基本拉丁文 (C0 Control and Basic Latin)(0000-007F)

“r-`M“”的其它编码列表

IBM037 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM437 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM500 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
ASMO-708 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
DOS-720 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
ibm737 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
ibm775 72 2D 60 4D F2 490387557874 114 45 96 77 242 162 055 140 115 362 01110010 00101101 01100000 01001101 11110010
ibm850 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
ibm852 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM855 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
ibm857 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM00858 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM860 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
ibm861 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
DOS-862 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM863 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM864 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
IBM865 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
cp866 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
ibm869 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM870 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
windows-874 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
cp875 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
shift_jis 72 2D 60 4D 81 67 125539214786919 114 45 96 77 129 103 162 055 140 115 201 147 01110010 00101101 01100000 01001101 10000001 01100111
gb2312 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
ks_c_5601-1987 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
big5 72 2D 60 4D A1 A7 125539214795175 114 45 96 77 161 167 162 055 140 115 241 247 01110010 00101101 01100000 01001101 10100001 10100111
IBM1026 99 60 8D D4 6F 658749903983 153 96 141 212 111 231 140 215 324 157 10011001 01100000 10001101 11010100 01101111
IBM01047 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01140 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01141 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01142 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01143 99 60 51 D4 6F 658745971823 153 96 81 212 111 231 140 121 324 157 10011001 01100000 01010001 11010100 01101111
IBM01144 99 60 DD D4 6F 658755146863 153 96 221 212 111 231 140 335 324 157 10011001 01100000 11011101 11010100 01101111
IBM01145 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01146 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01147 99 60 A0 D4 6F 658751149167 153 96 160 212 111 231 140 240 324 157 10011001 01100000 10100000 11010100 01101111
IBM01148 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM01149 99 60 8C D4 6F 658749838447 153 96 140 212 111 231 140 214 324 157 10011001 01100000 10001100 11010100 01101111
utf-16 72 00 2D 00 60 00 4D 00 1C 20 0 114 0 45 0 96 0 77 0 28 32 162 000 055 000 140 000 115 000 034 040 01110010 00000000 00101101 00000000 01100000 00000000 01001101 00000000 00011100 00100000
utf-16BE 00 72 00 2D 00 60 00 4D 20 1C 0 0 114 0 45 0 96 0 77 32 28 000 162 000 055 000 140 000 115 040 034 00000000 01110010 00000000 00101101 00000000 01100000 00000000 01001101 00100000 00011100
windows-1250 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1251 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
Windows-1252 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1253 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1254 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1255 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1256 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1257 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
windows-1258 72 2D 60 4D 93 490387557779 114 45 96 77 147 162 055 140 115 223 01110010 00101101 01100000 01001101 10010011
Johab 72 2D 60 4D D9 40 125539214809408 114 45 96 77 217 64 162 055 140 115 331 100 01110010 00101101 01100000 01001101 11011001 01000000
macintosh 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-japanese 72 2D 60 4D 81 67 125539214786919 114 45 96 77 129 103 162 055 140 115 201 147 01110010 00101101 01100000 01001101 10000001 01100111
x-mac-chinesetrad 72 2D 60 4D A1 A7 125539214795175 114 45 96 77 161 167 162 055 140 115 241 247 01110010 00101101 01100000 01001101 10100001 10100111
x-mac-korean 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
x-mac-arabic 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-mac-hebrew 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-greek 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-cyrillic 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-chinesesimp 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
x-mac-romanian 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-ukrainian 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-thai 72 2D 60 4D 8D 490387557773 114 45 96 77 141 162 055 140 115 215 01110010 00101101 01100000 01001101 10001101
x-mac-ce 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-icelandic 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-turkish 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
x-mac-croatian 72 2D 60 4D D2 490387557842 114 45 96 77 210 162 055 140 115 322 01110010 00101101 01100000 01001101 11010010
utf-32 72 00 00 00 2D 00 00 00 60 00 00 00 4D 00 00 00 1C 20 00 00 0 114 0 0 0 45 0 0 0 96 0 0 0 77 0 0 0 28 32 0 0 162 000 000 000 055 000 000 000 140 000 000 000 115 000 000 000 034 040 000 000 01110010 00000000 00000000 00000000 00101101 00000000 00000000 00000000 01100000 00000000 00000000 00000000 01001101 00000000 00000000 00000000 00011100 00100000 00000000 00000000
utf-32BE 00 00 00 72 00 00 00 2D 00 00 00 60 00 00 00 4D 00 00 20 1C 0 0 0 0 114 0 0 0 45 0 0 0 96 0 0 0 77 0 0 32 28 000 000 000 162 000 000 000 055 000 000 000 140 000 000 000 115 000 000 040 034 00000000 00000000 00000000 01110010 00000000 00000000 00000000 00101101 00000000 00000000 00000000 01100000 00000000 00000000 00000000 01001101 00000000 00000000 00100000 00011100
x-Chinese-CNS 72 2D 60 4D A1 E6 125539214795238 114 45 96 77 161 230 162 055 140 115 241 346 01110010 00101101 01100000 01001101 10100001 11100110
x-cp20001 72 2D 60 4D 81 87 125539214786951 114 45 96 77 129 135 162 055 140 115 201 207 01110010 00101101 01100000 01001101 10000001 10000111
x-Chinese-Eten 72 2D 60 4D 81 87 125539214786951 114 45 96 77 129 135 162 055 140 115 201 207 01110010 00101101 01100000 01001101 10000001 10000111
x-cp20003 72 2D 60 4D 81 67 125539214786919 114 45 96 77 129 103 162 055 140 115 201 147 01110010 00101101 01100000 01001101 10000001 01100111
x-cp20004 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-cp20005 72 2D 60 4D 8D 94 125539214790036 114 45 96 77 141 148 162 055 140 115 215 224 01110010 00101101 01100000 01001101 10001101 10010100
x-IA5 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
x-IA5-German 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
x-IA5-Swedish 72 2D 3F 4D 22 490385394978 114 45 63 77 34 162 055 077 115 042 01110010 00101101 00111111 01001101 00100010
x-IA5-Norwegian 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
us-ascii 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-cp20261 72 2D C1 20 4D 3F 125540839214399 114 45 193 32 77 63 162 055 301 040 115 077 01110010 00101101 11000001 00100000 01001101 00111111
x-cp20269 72 2D C1 4D AA 490393914794 114 45 193 77 170 162 055 301 115 252 01110010 00101101 11000001 01001101 10101010
IBM273 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM277 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM278 99 60 51 D4 6F 658745971823 153 96 81 212 111 231 140 121 324 157 10011001 01100000 01010001 11010100 01101111
IBM280 99 60 DD D4 6F 658755146863 153 96 221 212 111 231 140 335 324 157 10011001 01100000 11011101 11010100 01101111
IBM284 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM285 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM290 9B 60 79 D4 6F 667338527855 155 96 121 212 111 233 140 171 324 157 10011011 01100000 01111001 11010100 01101111
IBM297 99 60 A0 D4 6F 658751149167 153 96 160 212 111 231 140 240 324 157 10011001 01100000 10100000 11010100 01101111
IBM420 99 60 6F D4 6F 658747937903 153 96 111 212 111 231 140 157 324 157 10011001 01100000 01101111 11010100 01101111
IBM423 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM424 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
x-EBCDIC-KoreanExtended 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM-Thai 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
koi8-r 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
IBM871 99 60 8C D4 6F 658749838447 153 96 140 212 111 231 140 214 324 157 10011001 01100000 10001100 11010100 01101111
IBM880 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
IBM905 99 60 DA D4 6F 658754950255 153 96 218 212 111 231 140 332 324 157 10011001 01100000 11011010 11010100 01101111
IBM00924 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
EUC-JP 72 2D 60 4D A1 C8 125539214795208 114 45 96 77 161 200 162 055 140 115 241 310 01110010 00101101 01100000 01001101 10100001 11001000
x-cp20936 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
x-cp20949 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
cp1025 99 60 79 D4 6F 658748593263 153 96 121 212 111 231 140 171 324 157 10011001 01100000 01111001 11010100 01101111
koi8-u 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-1 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-2 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-3 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-4 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-5 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-6 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-7 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-8 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-9 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-8859-13 72 2D 60 4D B4 490387557812 114 45 96 77 180 162 055 140 115 264 01110010 00101101 01100000 01001101 10110100
iso-8859-15 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
x-Europa 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
iso-8859-8-i 72 2D 60 4D 22 490387557666 114 45 96 77 34 162 055 140 115 042 01110010 00101101 01100000 01001101 00100010
iso-2022-jp 72 2D 60 4D 1B 24 42 21 48 1B 28 42 0 114 45 96 77 27 36 66 33 72 27 40 66 162 055 140 115 033 044 102 041 110 033 050 102 01110010 00101101 01100000 01001101 00011011 00100100 01000010 00100001 01001000 00011011 00101000 01000010
csISO2022JP 72 2D 60 4D 1B 24 42 21 48 1B 28 42 0 114 45 96 77 27 36 66 33 72 27 40 66 162 055 140 115 033 044 102 041 110 033 050 102 01110010 00101101 01100000 01001101 00011011 00100100 01000010 00100001 01001000 00011011 00101000 01000010
iso-2022-jp 72 2D 60 4D 1B 24 42 21 48 1B 28 42 0 114 45 96 77 27 36 66 33 72 27 40 66 162 055 140 115 033 044 102 041 110 033 050 102 01110010 00101101 01100000 01001101 00011011 00100100 01000010 00100001 01001000 00011011 00101000 01000010
iso-2022-kr 72 2D 60 4D 1B 24 29 43 0E 21 30 0F 0 114 45 96 77 27 36 41 67 14 33 48 15 162 055 140 115 033 044 051 103 016 041 060 017 01110010 00101101 01100000 01001101 00011011 00100100 00101001 01000011 00001110 00100001 00110000 00001111
x-cp50227 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
euc-jp 72 2D 60 4D A1 C8 125539214795208 114 45 96 77 161 200 162 055 140 115 241 310 01110010 00101101 01100000 01001101 10100001 11001000
EUC-CN 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
euc-kr 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
hz-gb-2312 72 2D 60 4D 7E 7B 21 30 7E 7D 0 114 45 96 77 126 123 33 48 126 125 162 055 140 115 176 173 041 060 176 175 01110010 00101101 01100000 01001101 01111110 01111011 00100001 00110000 01111110 01111101
GB18030 72 2D 60 4D A1 B0 125539214795184 114 45 96 77 161 176 162 055 140 115 241 260 01110010 00101101 01100000 01001101 10100001 10110000
x-iscii-de 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-be 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-ta 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-te 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-as 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-or 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-ka 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-ma 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-gu 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
x-iscii-pa 72 2D 60 4D 3F 490387557695 114 45 96 77 63 162 055 140 115 077 01110010 00101101 01100000 01001101 00111111
utf-7 72 2D 2B 41 47 41 2D 4D 2B 49 42 77 2D 0 114 45 43 65 71 65 45 77 43 73 66 119 45 162 055 053 101 107 101 055 115 053 111 102 167 055 01110010 00101101 00101011 01000001 01000111 01000001 00101101 01001101 00101011 01001001 01000010 01110111 00101101
utf-8 72 2D 60 4D E2 80 9C 32138038991814812 114 45 96 77 226 128 156 162 055 140 115 342 200 234 01110010 00101101 01100000 01001101 11100010 10000000 10011100

相关功能

编码查字符 中文字符编码比较 Unicode 编码详解 常用字符编码 Unicode 区域表 字符编码大全