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语法：native2ascii [options] [inputfile [outputfile]]
描述：如果outputfile没有指定，标准输出将用于结果输出；如果inputfile没有指定，标准输入设备将用于输入。
参数
-reverse
使用该参数将Unicode编码字符转换为本地编码字符
-encoding encoding_name
用于指定转化时使用的字符编码。默认编码从系统属性file.encoding获取。后面的表格式字符编码，指定encoding_name使用表格第一栏。
-Joption
该参数一般无需使用，用于指定Java虚拟机的启动参数。例如：-J-Xms48m设置虚拟机启动时分配内存为48M 。
Example1:
native2ascii test.txt test_unicode.txt
test.txt文件内容：native2ascii测试
test_unicode.txt文件内容：native2asciiu6d4bu8bd5
Example2:
native2ascii test_unicode.txt test_gbk.txt -reverse
test_gbk.txt内容：native2ascii测试
Basic Encoding Set (contained in lib/rt.jar)
Supported by java.nio, java.io and java.lang APIs
Canonical Name for java.nio API | Canonical Name for java.io and java.lang API | Description |
|---|---|---|
| US-ASCII | ASCII | American Standard Code for Information Interchange |
| windows-1250 | Cp1250 | Windows Eastern European |
| windows-1251 | Cp1251 | Windows Cyrillic |
| windows-1252 | Cp1252 | Windows Latin-1 |
| windows-1253 | Cp1253 | Windows Greek |
| windows-1254 | Cp1254 | Windows Turkish |
| windows-1257 | Cp1257 | Windows Baltic |
| ISO-8859-1 | ISO8859_1 | ISO 8859-1, Latin Alphabet No. 1 |
| ISO-8859-2 | ISO8859_2 | Latin Alphabet No. 2 |
| ISO-8859-4 | ISO8859_4 | Latin Alphabet No. 4 |
| ISO-8859-5 | ISO8859_5 | Latin/Cyrillic Alphabet |
| ISO-8859-7 | ISO8859_7 | Latin/Greek Alphabet |
| ISO-8859-9 | ISO8859_9 | Latin Alphabet No. 5 |
| ISO-8859-13 | ISO8859_13 | Latin Alphabet No. 7 |
| ISO-8859-15 | ISO8859_15 | Latin Alphabet No. 9 |
| KOI8-R | KOI8_R | KOI8-R, Russian |
| UTF-8 | UTF8 | Eight-bit UCS Transformation Format |
| UTF-16 | UTF-16 | Sixteen-bit UCS Transformation Format, byte order identified by an optional byte-order mark |
| UTF-16BE | UnicodeBigUnmarked | Sixteen-bit Unicode Transformation Format, big-endian byte order |
| UTF-16LE | UnicodeLittleUnmarked | Sixteen-bit Unicode Transformation Format, little-endian byte order |
| Not available | UnicodeBig | Sixteen-bit Unicode Transformation Format, big-endian byte order, with byte-order mark |
| Not available | UnicodeLittle | Sixteen-bit Unicode Transformation Format, little-endian byte order, with byte-order mark |
Extended Encoding Set (contained in lib/charsets.jar)
Supported by java.nio, java.io and java.lang APIs
Canonical Name for java.nio API | Canonical Name for java.io and java.lang API | Description |
|---|---|---|
| windows-1255 | Cp1255 | Windows Hebrew |
| windows-1256 | Cp1256 | Windows Arabic |
| windows-1258 | Cp1258 | Windows Vietnamese |
| ISO-8859-3 | ISO8859_3 | Latin Alphabet No. 3 |
| ISO-8859-6 | ISO8859_6 | Latin/Arabic Alphabet |
| ISO-8859-8 | ISO8859_8 | Latin/Hebrew Alphabet |
| windows-31j | MS932 | Windows Japanese |
| EUC-JP | EUC_JP | JISX 0201, 0208 and 0212, EUC encoding Japanese |
| x-EUC-JP-Linux | EUC_JP_LINUX | JISX 0201, 0208 , EUC encoding Japanese |
| Shift_JIS | SJIS | Shift-JIS, Japanese |
| ISO-2022-JP | ISO2022JP | JIS X 0201, 0208, in ISO 2022 form, Japanese |
| x-mswin-936 | MS936 | Windows Simplified Chinese |
| GB18030 | GB18030 | Simplified Chinese, PRC standard |
| x-EUC-CN | EUC_CN | GB2312, EUC encoding, Simplified Chinese |
| GBK | GBK | GBK, Simplified Chinese |
| ISCII91 | ISCII91 | ISCII91 encoding of Indic scripts |
| x-windows-949 | MS949 | Windows Korean |
| EUC-KR | EUC_KR | KS C 5601, EUC encoding, Korean |
| ISO-2022-KR | ISO2022KR | ISO 2022 KR, Korean |
| x-windows-950 | MS950 | Windows Traditional Chinese |
| x-MS950-HKSCS | MS950_HKSCS | Windows Traditional Chinese with Hong Kong extensions |
| x-EUC-TW | EUC_TW | CNS11643 (Plane 1-3), EUC encoding, Traditional Chinese |
| Big5 | Big5 | Big5, Traditional Chinese |
| Big5-HKSCS | Big5_HKSCS | Big5 with Hong Kong extensions, Traditional Chinese |
| TIS-620 | TIS620 | TIS620, Thai |
Extended Encoding Set (contained in lib/charsets.jar)
Supported by java.io and java.lang APIs
Canonical Name | Description |
|---|---|
| Big5_Solaris | Big5 with seven additional Hanzi ideograph character mappings for the Solaris zh_TW.BIG5 locale |
| Cp037 | USA, Canada (Bilingual, French), Netherlands, Portugal, Brazil, Australia |
| Cp273 | IBM Austria, Germany |
| Cp277 | IBM Denmark, Norway |
| Cp278 | IBM Finland, Sweden |
| Cp280 | IBM Italy |
| Cp284 | IBM Catalan/Spain, Spanish Latin America |
| Cp285 | IBM United Kingdom, Ireland |
| Cp297 | IBM France |
| Cp420 | IBM Arabic |
| Cp424 | IBM Hebrew |
| Cp437 | MS-DOS United States, Australia, New Zealand, South Africa |
| Cp500 | EBCDIC 500V1 |
| Cp737 | PC Greek |
| Cp775 | PC Baltic |
| Cp838 | IBM Thailand extended SBCS |
| Cp850 | MS-DOS Latin-1 |
| Cp852 | MS-DOS Latin-2 |
| Cp855 | IBM Cyrillic |
| Cp856 | IBM Hebrew |
| Cp857 | IBM Turkish |
| Cp858 | Variant of Cp850 with Euro character |
| Cp860 | MS-DOS Portuguese |
| Cp861 | MS-DOS Icelandic |
| Cp862 | PC Hebrew |
| Cp863 | MS-DOS Canadian French |
| Cp864 | PC Arabic |
| Cp865 | MS-DOS Nordic |
| Cp866 | MS-DOS Russian |
| Cp868 | MS-DOS Pakistan |
| Cp869 | IBM Modern Greek |
| Cp870 | IBM Multilingual Latin-2 |
| Cp871 | IBM Iceland |
| Cp874 | IBM Thai |
| Cp875 | IBM Greek |
| Cp918 | IBM Pakistan (Urdu) |
| Cp921 | IBM Latvia, Lithuania (AIX, DOS) |
| Cp922 | IBM Estonia (AIX, DOS) |
| Cp930 | Japanese Katakana-Kanji mixed with 4370 UDC, superset of 5026 |
| Cp933 | Korean Mixed with 1880 UDC, superset of 5029 |
| Cp935 | Simplified Chinese Host mixed with 1880 UDC, superset of 5031 |
| Cp937 | Traditional Chinese Host miexed with 6204 UDC, superset of 5033 |
| Cp939 | Japanese Latin Kanji mixed with 4370 UDC, superset of 5035 |
| Cp942 | IBM OS/2 Japanese, superset of Cp932 |
| Cp942C | Variant of Cp942 |
| Cp943 | IBM OS/2 Japanese, superset of Cp932 and Shift-JIS |
| Cp943C | Variant of Cp943 |
| Cp948 | OS/2 Chinese (Taiwan) superset of 938 |
| Cp949 | PC Korean |
| Cp949C | Variant of Cp949 |
| Cp950 | PC Chinese (Hong Kong, Taiwan) |
| Cp964 | AIX Chinese (Taiwan) |
| Cp970 | AIX Korean |
| Cp1006 | IBM AIX Pakistan (Urdu) |
| Cp1025 | IBM Multilingual Cyrillic: Bulgaria, Bosnia, Herzegovinia, Macedonia (FYR) |
| Cp1026 | IBM Latin-5, Turkey |
| Cp1046 | IBM Arabic – Windows |
| Cp1097 | IBM Iran (Farsi)/Persian |
| Cp1098 | IBM Iran (Farsi)/Persian (PC) |
| Cp1112 | IBM Latvia, Lithuania |
| Cp1122 | IBM Estonia |
| Cp1123 | IBM Ukraine |
| Cp1124 | IBM AIX Ukraine |
| Cp1140 | Variant of Cp037 with Euro character |
| Cp1141 | Variant of Cp273 with Euro character |
| Cp1142 | Variant of Cp277 with Euro character |
| Cp1143 | Variant of Cp278 with Euro character |
| Cp1144 | Variant of Cp280 with Euro character |
| Cp1145 | Variant of Cp284 with Euro character |
| Cp1146 | Variant of Cp285 with Euro character |
| Cp1147 | Variant of Cp297 with Euro character |
| Cp1148 | Variant of Cp500 with Euro character |
| Cp1149 | Variant of Cp871 with Euro character |
| Cp1381 | IBM OS/2, DOS People’s Republic of China (PRC) |
| Cp1383 | IBM AIX People’s Republic of China (PRC) |
| Cp33722 | IBM-eucJP – Japanese (superset of 5050) |
| ISO2022_CN_CNS | CNS11643 in ISO 2022 CN form, Traditional Chinese (conversion from Unicode only) |
| ISO2022_CN_GB | GB2312 in ISO 2022 CN form, Simplified Chinese (conversion from Unicode only) |
| JISAutoDetect | Detects and converts from Shift-JIS, EUC-JP, ISO 2022 JP (conversion to Unicode only) |
| MS874 | Windows Thai |
| MacArabic | Macintosh Arabic |
| MacCentralEurope | Macintosh Latin-2 |
| MacCroatian | Macintosh Croatian |
| MacCyrillic | Macintosh Cyrillic |
| MacDingbat | Macintosh Dingbat |
| MacGreek | Macintosh Greek |
| MacHebrew | Macintosh Hebrew |
| MacIceland | Macintosh Iceland |
| MacRoman | Macintosh Roman |
| MacRomania | Macintosh Romania |
| MacSymbol | Macintosh Symbol |
| MacThai | Macintosh Thai |
| MacTurkish | Macintosh Turkish |
| MacUkraine | Macintosh Ukraine |
native2ascii -[options] [inputfile [outputfile]]
-reverse：将Unicode编码转为本地或者指定编码，不指定编码情况下，将转为本地编码。
-encoding encoding_name：转换为指定编码，encoding_name为编码名称。
inputfile：表示输入文件全名。
outputfile：输出文件名。如果缺少此参数，将输出到控制台。
native2ascii zh.txt u.txt
打开u.txt，内容为“\u7194\u5ca9”。
\u7194\u5ca9
可以看到，控制台输出了“\u7194\u5ca9”。
native2ascii -encoding ISO8859-1 zh.txt i.txt
打开i.txt文件，内容为“\u00c8\u00db\u00d1\u00d2”。
native2ascii -reverse u.txt u_nv.txt
打开u_nv.txt文件，内容为“熔岩”。
C:\test>native2ascii -reverse u.txt
熔岩
可以看到，控制台输出了“熔岩”。
native2ascii -reverse i.txt i_nv.txt
打开i_nv.txt文件，内容为“\u00c8\u00db\u00d1\u00d2”。发现转码前后完全一样的。也就是说，等于没有转，或者说思想糊涂，对命名没有理解。。
native2ascii -reverse -encoding GBK i.txt i_gbk.txt
打开i_gbk.txt文件，内容为“\u00c8\u00db\u00d1\u00d2”。发现转码前后完全一样的。也就是说，等于没有转，或者说思想糊涂，对命名没有理解。
C:\test>native2ascii -reverse -encoding ISO8859-1 i.txt
熔岩
从这个结果看，目标达到到了，编码i.txt为ISO8859-1，转为本地编码后内容为“熔岩”。从这里应该意识到，native2ascii -reverse命令中-encoding指定的编码为源文件的编码格式。而在native2ascii 命令中-encoding指定的编码为（生成的）目标文件的编码格式。这一点非常的重要！切记！！
native2ascii 12a.txt 12a_nv.txt
打开12a_nv.txt文件，内容为“12axyz”。
继续测试，转为ISO8859-1编码看看
C:\test>native2ascii -encoding ISO8859-1 12a.txt
12axyz
结果还是没有转码。
从结果可以得出结论：对于纯数字和字母的文本类型件，转码前后的内容是一样的。
发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/197819.html原文链接：https://javaforall.cn
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