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推荐几款不错的免费软件，如办公软件、辞典等
作者:Richard 日期:2009-04-10
如果你希望使用正版软件，不希望使用一些盗版软件，但是又不想花钱的话，可以尝试下：
1、Office 办公软件
OpenOffice.org
官方网站：
http://www.openoffice.org/
官方下载页面：
http://zh.openoffice.org/new/zh_cn/downloads.html
简介：
“OpenOffice.org”是什么？
OpenOffice.org 是一套跨平台的办公室软件套件，能在 Windows、Linux、MacOS X (X11)、和 Solaris 等操作系统上执行。它与各个主要的办公室软件套件兼容。OpenOffice.org 是自由软件，任何人都可以免费下载、使用、及推广它。下列是 OpenOffice.org 的主要模块：
Writer 文本文档 Calc 电子表格 Impress 演示文稿 Math 公式 Draw 绘图 Base 数据库
套件的优势
OpenOffice.org 不仅是六大组件的组合，而且与同类产品不同的是，本套件不是独立软件模块形式创建的，从一开始，它就被设计成一个完整的办公软件包。
所有的包有类似的外观，易于使用，如“样式”等“一次学会到处使用”的工具。OpenOffice.org 保持与您的电脑类似的外观——您一旦改变您的桌面，OpenOffice.org 也会相应改变。
组件间的相同工具用法相同——例如， Writer 里面使用的绘图工具在 Impress 和 Draw 里面您也能用到。
您不必知道哪个应用程序用于创建哪个特殊文件——您使用“文件”就可以“打开”任何 OpenOffice.org 文件，正确的应用程序将会运行。
所有的包共享一个拼写检查工具，如果您改变一个组件包里面的“选项”，在其他组件包里也会同时改变。
所有组件间资料可以轻松转移。
所有的组件文件可储存为 OpenDocument 格式（新的办公文档国际标准），这种基于 XML 的格式相比同类产品的格式，磁盘存储更合理，任何兼容 OpenDocument 标准的软件均可以访问您的数据。
使用安装程序，所有组件可以一次性安装。
所有发布的版本都基于相同的开放许可证——没有隐性费用
您所需要的全都在一个办公室生产力软件套件之中——现在就请下载吧！
2、词典工具软件
有道桌面词典
官方网站：http://www.youdao.com/
官方下载页面：http://cidian.youdao.com/
简介：
有道桌面词典2.0原版收录了《21世纪大英汉词典》和《新汉英大辞典》两部权威正版词典。这两部词典都是国内外语词典领域最权威的词典，内容丰富全面，释义详尽，提供了同义词、反义词、例句、常用词组等参考信息。您可以通过点击基础释义下方的“展开《21世纪大英汉词典》”或“展开《新汉英大辞典》”来查看这两本权威词典的释义。
3、压缩文件管理软件
7-Zip
官方网站：http://www.7-zip.org/
官方下载页面：http://www.7-zip.org/download.html
简介：
License
7-Zip is open source software. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions. Check license information here: 7-Zip license.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. But you can make a donation to support further development of 7-Zip.
The main features of 7-Zip
High compression ratio in new 7z format with LZMA compression
Supported formats:
Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.
For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
Strong AES-256 encryption in 7z and ZIP formats
Self-extracting capability for 7z format
Integration with Windows Shell
Powerful File Manager
Powerful command line version
Plugin for FAR Manager
Localizations for 74 languages
4、图片编辑软件
Paint.NET
官方网站：http://www.getpaint.net
官方下载页面：http://www.getpaint.net/download.html#download
简介：
Features
Paint.NET is designed to be accessible and simple for most users while still allowing powerful and sophisticated operations to be performed on an image.
Simple, intuitive user interface
Every feature and user interface element was designed to be immediately intuitive and/or quickly learnable without assistance. It is also designed to be immediately familiar to users of Paint and Photoshop.
Layers
This allows you to compose one complete image from a stack of other images that are blended together.
Unlimited History
Every action you take on an image is recorded in the History window, and is only limited by available disk space and memory.
Support for many popular file formats
The following file formats are supported: PNG, JPEG, BMP, GIF, TGA, DDS, and TIFF. The native Paint.NET image type is PDN which preserves layering.
Effects and Adjustments
You can apply many special effects to your image, and support for image adjustments is also possible.
Full Support for Dual- and Quad-Core CPU's, and 64-bit
Paint.NET is fully optimized for the latest in processor technology enabling dramatic performance improvements and the ability to work with larger and more images.
Tablet PC Support
The Paintbrush tool supports the Tablet PC's pressure-sensitivity feature, allowing you to draw in a more natural and artistic manner.
Extensibility
Paint.NET supports plugins that add new effects, adjustments, and file format support.
Free
Paint.NET is provided for no cost with generous licensing terms.
5、CAD图纸查看、打印软件
Autodesk® Design Review,DWG TrueView™
官方网站：http://www.autocad.com
官方下载页面：http://usa.autodesk.com/adsk/servlet/index?id=12423405&siteID=123112,http://usa.autodesk.com/adsk/servlet/index?id=12423405&siteID=123112
简介：
Accelerate your reviews with Autodesk® Design Review software, the free*, integrated, all-digital way to view, print, mark up, and compare versions of 2D and 3D drawings, maps, and models—without the original design-creation software. For everyone in the review chain, sharing and collaborating on designs has never been this easy.
Faster turnarounds—No more waiting for paper designs to arrive
Lower costs—No shipping, faxing, or courier costs
Complete fidelity—All design information is built into the digital model
Use the free* DWG TrueView™ CAD file conversion software to accurately view, plot, and publish authentic DWG™ and DWF™ files.
Take the capabilities of DWG TrueView to the next level by downloading your copy of Autodesk Design Review first. Autodesk Design Review is the free*, integrated, all-digital way to view, print, mark up, and compare versions of 2D and 3D drawings, maps, and models—without the original design-creation software.
DWG technology from Autodesk is the original and accurate way to store and share design data when working with AutoCAD® software. With billions of DWG files circulating throughout every design industry, it’s one of the most commonly used design data formats. Have complete confidence in the integrity and reliability of your data. Use authentic DWG.
DWG TrueView CAD file conversion software includes DWG TrueConvert™ translation software for translating any AutoCAD design application or AutoCAD-
1、Office 办公软件
OpenOffice.org
官方网站：
http://www.openoffice.org/
官方下载页面：
http://zh.openoffice.org/new/zh_cn/downloads.html
简介：
“OpenOffice.org”是什么？
OpenOffice.org 是一套跨平台的办公室软件套件，能在 Windows、Linux、MacOS X (X11)、和 Solaris 等操作系统上执行。它与各个主要的办公室软件套件兼容。OpenOffice.org 是自由软件，任何人都可以免费下载、使用、及推广它。下列是 OpenOffice.org 的主要模块：
Writer 文本文档 Calc 电子表格 Impress 演示文稿 Math 公式 Draw 绘图 Base 数据库
套件的优势
OpenOffice.org 不仅是六大组件的组合，而且与同类产品不同的是，本套件不是独立软件模块形式创建的，从一开始，它就被设计成一个完整的办公软件包。
所有的包有类似的外观，易于使用，如“样式”等“一次学会到处使用”的工具。OpenOffice.org 保持与您的电脑类似的外观——您一旦改变您的桌面，OpenOffice.org 也会相应改变。
组件间的相同工具用法相同——例如， Writer 里面使用的绘图工具在 Impress 和 Draw 里面您也能用到。
您不必知道哪个应用程序用于创建哪个特殊文件——您使用“文件”就可以“打开”任何 OpenOffice.org 文件，正确的应用程序将会运行。
所有的包共享一个拼写检查工具，如果您改变一个组件包里面的“选项”，在其他组件包里也会同时改变。
所有组件间资料可以轻松转移。
所有的组件文件可储存为 OpenDocument 格式（新的办公文档国际标准），这种基于 XML 的格式相比同类产品的格式，磁盘存储更合理，任何兼容 OpenDocument 标准的软件均可以访问您的数据。
使用安装程序，所有组件可以一次性安装。
所有发布的版本都基于相同的开放许可证——没有隐性费用
您所需要的全都在一个办公室生产力软件套件之中——现在就请下载吧！
2、词典工具软件
有道桌面词典
官方网站：http://www.youdao.com/
官方下载页面：http://cidian.youdao.com/
简介：
有道桌面词典2.0原版收录了《21世纪大英汉词典》和《新汉英大辞典》两部权威正版词典。这两部词典都是国内外语词典领域最权威的词典，内容丰富全面，释义详尽，提供了同义词、反义词、例句、常用词组等参考信息。您可以通过点击基础释义下方的“展开《21世纪大英汉词典》”或“展开《新汉英大辞典》”来查看这两本权威词典的释义。
3、压缩文件管理软件
7-Zip
官方网站：http://www.7-zip.org/
官方下载页面：http://www.7-zip.org/download.html
简介：
License
7-Zip is open source software. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions. Check license information here: 7-Zip license.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. But you can make a donation to support further development of 7-Zip.
The main features of 7-Zip
High compression ratio in new 7z format with LZMA compression
Supported formats:
Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.
For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
Strong AES-256 encryption in 7z and ZIP formats
Self-extracting capability for 7z format
Integration with Windows Shell
Powerful File Manager
Powerful command line version
Plugin for FAR Manager
Localizations for 74 languages
4、图片编辑软件
Paint.NET
官方网站：http://www.getpaint.net
官方下载页面：http://www.getpaint.net/download.html#download
简介：
Features
Paint.NET is designed to be accessible and simple for most users while still allowing powerful and sophisticated operations to be performed on an image.
Simple, intuitive user interface
Every feature and user interface element was designed to be immediately intuitive and/or quickly learnable without assistance. It is also designed to be immediately familiar to users of Paint and Photoshop.
Layers
This allows you to compose one complete image from a stack of other images that are blended together.
Unlimited History
Every action you take on an image is recorded in the History window, and is only limited by available disk space and memory.
Support for many popular file formats
The following file formats are supported: PNG, JPEG, BMP, GIF, TGA, DDS, and TIFF. The native Paint.NET image type is PDN which preserves layering.
Effects and Adjustments
You can apply many special effects to your image, and support for image adjustments is also possible.
Full Support for Dual- and Quad-Core CPU's, and 64-bit
Paint.NET is fully optimized for the latest in processor technology enabling dramatic performance improvements and the ability to work with larger and more images.
Tablet PC Support
The Paintbrush tool supports the Tablet PC's pressure-sensitivity feature, allowing you to draw in a more natural and artistic manner.
Extensibility
Paint.NET supports plugins that add new effects, adjustments, and file format support.
Free
Paint.NET is provided for no cost with generous licensing terms.
5、CAD图纸查看、打印软件
Autodesk® Design Review,DWG TrueView™
官方网站：http://www.autocad.com
官方下载页面：http://usa.autodesk.com/adsk/servlet/index?id=12423405&siteID=123112,http://usa.autodesk.com/adsk/servlet/index?id=12423405&siteID=123112
简介：
Accelerate your reviews with Autodesk® Design Review software, the free*, integrated, all-digital way to view, print, mark up, and compare versions of 2D and 3D drawings, maps, and models—without the original design-creation software. For everyone in the review chain, sharing and collaborating on designs has never been this easy.
Faster turnarounds—No more waiting for paper designs to arrive
Lower costs—No shipping, faxing, or courier costs
Complete fidelity—All design information is built into the digital model
Use the free* DWG TrueView™ CAD file conversion software to accurately view, plot, and publish authentic DWG™ and DWF™ files.
Take the capabilities of DWG TrueView to the next level by downloading your copy of Autodesk Design Review first. Autodesk Design Review is the free*, integrated, all-digital way to view, print, mark up, and compare versions of 2D and 3D drawings, maps, and models—without the original design-creation software.
DWG technology from Autodesk is the original and accurate way to store and share design data when working with AutoCAD® software. With billions of DWG files circulating throughout every design industry, it’s one of the most commonly used design data formats. Have complete confidence in the integrity and reliability of your data. Use authentic DWG.
DWG TrueView CAD file conversion software includes DWG TrueConvert™ translation software for translating any AutoCAD design application or AutoCAD-
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