/**
?*?
?*/
package?com.gootrip.util;

/*
?*?base64?encoding?and?decoding.
?*?Copyright?（C）?2001-2004?Stephen?Ostermiller
?*?http://ostermiller.org/contact.pl?regarding=Java+Utilities
?*
?*?This?program?is?free?software;?you?can?redistribute?it?and/or?modify
?*?it?under?the?terms?of?the?GNU?General?Public?License?as?published?by
?*?the?Free?Software?Foundation;?either?version?2?of?the?License?or
?*?（at?your?option）?any?later?version.
?*
?*?This?program?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
?*?GNU?General?Public?License?for?more?details.
?*
?*?See?COPYING.TXT?for?details.
?*/

import?java.io.*;
import?gnu.getopt.*;
import?java.text.MessageFormat;
import?java.util.ResourceBundle;
import?java.util.Locale;

/**
?*?Implements?base64?encoding?and?decoding?as?defined?by?RFC?2045:?“Multipurpose?Internet
?*?Mail?Extensions?（MIME）?Part?One:?Format?of?Internet?Message?Bodies“?page?23.
?*?More?information?about?this?class?is?available?from??*?“http://ostermiller.org/utils/base64.html“>ostermiller.org.
?*
?*?

?*?
The?base64?Content-Transfer-Encoding?is?designed?to?represent
?*?arbitrary?sequences?of?octets?in?a?form?that?need?not?be?humanly
?*?readable.??The?encoding?and?decoding?algorithms?are?simple?but?the
?*?encoded?data?are?consistently?only?about?33?percent?larger?than?the
?*?unencoded?data.??This?encoding?is?virtually?identical?to?the?one?used
?*?in?Privacy?Enhanced?Mail?（PEM）?applications?as?defined?in?RFC?1421.

?*
?*?
A?65-character?subset?of?US-ASCII?is?used?enabling?6?bits?to?be
?*?represented?per?printable?character.?（The?extra?65th?character?“=“
?*?is?used?to?signify?a?special?processing?function.）

?*
?*?
NOTE:??This?subset?has?the?important?property?that?it?is?represented
?*?identically?in?all?versions?of?ISO?646?including?US-ASCII?and?all
?*?characters?in?the?subset?are?also?represented?identically?in?all
?*?versions?of?EBCDIC.?Other?popular?encodings?such?as?the?encoding
?*?used?by?the?uuencode?utility?Macintosh?binhex?4.0?[RFC-1741]?and
?*?the?base85?encoding?specified?as?part?of?Level?2?Postscript?do?no
?*?share?these?properties?and?thus?do?not?fulfill?the?portability
?*?requirements?a?binary?transport?encoding?for?mail?must?meet.

?*
?*?
The?encoding?process?represents?24-bit?groups?of?input?bits?as?output
?*?strings?of?4?encoded?characters.??Proceeding?from?left?to?right?a
?*?24-bit?input?group?is?formed?by?concatenating?3?8bit?input?groups.
?*?These?24?bits?are?then?treated?as?4?concatenated?6-bit?groups?each
?*?of?which?is?translated?into?a?single?digit?in?the?base64?alphabet.
?*?When?encoding?a?bit?stream?via?the?base64?encoding?the?bit?stream
?*?must?be?presumed?to?be?ordered?with?the?most-significant-bit?first.
?*?That?is?the?first?bit?in?the?stream?will?be?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????57550??2007-03-19?16:05??Java常用工具類\27個java常用的工具類\base64.java

?????文件???????1786??2007-03-20?16:45??Java常用工具類\27個java常用的工具類\base64DecodingException.java

?????文件???????1079??2007-03-09?15:33??Java常用工具類\27個java常用的工具類\CConst.java

?????文件???????4529??2007-04-03?11:53??Java常用工具類\27個java常用的工具類\CharTools.java

?????文件???????1161??2007-04-03?11:52??Java常用工具類\27個java常用的工具類\ConfigHelper.java

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?????文件??????10737??2007-03-21?14:06??Java常用工具類\27個java常用的工具類\DateHandler.java

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?????文件???????6203??2007-03-26?17:12??Java常用工具類\27個java常用的工具類\DealString.java

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?????文件???????4611??2007-04-03?17:12??Java常用工具類\27個java常用的工具類\Dom4jHelper.java

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?????文件??????13936??2007-03-19?10:48??Java常用工具類\27個java常用的工具類\ExecHelper.java

?????文件???????4246??2007-03-20?16:54??Java常用工具類\27個java常用的工具類\FileHelper.java

?????文件???????8434??2007-03-15?17:18??Java常用工具類\27個java常用的工具類\FileUploadUtil.java

?????文件??????20165??2007-03-15?17:12??Java常用工具類\27個java常用的工具類\FileUtil.java

?????文件???????2685??2013-05-18?12:51??Java常用工具類\27個java常用的工具類\ftp二進制與ascii傳輸方式區別.txt

?????文件???????2239??2007-03-19?16:24??Java常用工具類\27個java常用的工具類\IPDeal.java

?????文件??????15198??2007-03-09?15:45??Java常用工具類\27個java常用的工具類\Md5.java

?????文件???????1711??2007-03-09?13:55??Java常用工具類\27個java常用的工具類\MD5Encrypt.java

?????文件???????2877??2007-03-12?10:12??Java常用工具類\27個java常用的工具類\MyFileFilter.java

?????文件???????2492??2007-04-03?12:20??Java常用工具類\27個java常用的工具類\PropsUtil.java

?????文件???????4940??2007-04-03?14:15??Java常用工具類\27個java常用的工具類\RegExUtil.java

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?????文件??????56840??2007-04-03?13:45??Java常用工具類\27個java常用的工具類\StringHelper.java

?????文件???????1790??2007-03-22?17:32??Java常用工具類\27個java常用的工具類\ThumbnailGenerator.java

?????文件???????5436??2007-03-22?17:31??Java常用工具類\27個java常用的工具類\UploadHelper.java

?????文件???????2612??2008-07-19?09:13??Java常用工具類\database\ConnectDB.java

?????文件??????12709??2013-05-20?08:27??Java常用工具類\Datetime\DateTools.java

............此處省略500個文件信息