本文禁止转载~
选择一个开源软件许可证并不需要很可怕
下列哪一项最能描述你的情况？
我想简单和宽容
MIT许可证是一个许可证，就是短了点。它让人们做任何他们想与你的代码，只要他们提供归属回你和不承担你的责任。
jQuery和Rails使用MIT许可。
也就是把源代码拷贝出去后他人可以做任何操作，也和作者没有关系
The MIT License (MIT)
Copyright (c) [year] [fullname]
Permission is hereby granted, free of charge, to any person obtaining a copy
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要求
- 许可和版权声明. 包括一份详细的代码的许可证和版权声明
许可
- 商业用途。 本软件及衍生物可以用于商业用途
- 分发 。 你可以分发这个软件
- 改造。 该软件可以被修改
- 个人使用。 你可以使用和修改软件，而不分发它
- 转授许可证授权。 你可以给予许可的修改和分发本软件给第三方，不包括在许可证。
禁止
- 承担责任。 软件提供无保修和软件作者/许可证所有者不能承担损害赔偿责任。
我关心的是专利
Apache许可证是一个许可证类似于MIT许可证，而且还提供了专利权的授予表达用户的贡献。
Apache，SVN，NuGet使用Apache许可证。
他人修改了源代码之后必须标注出哪里做出修改，这样就可以保护原作者的源代码的完整性，并且不能对修改之后的代码进行自己的版权商标添加。
Apache License 2.0
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要求
- 许可和版权声明. 包括一份详细的代码的许可证和版权声明
- 状态的改变. 显示了显着的变化的代码
许可
- 商业用途。 本软件及衍生物可以用于商业用途
- 分发 。 你可以分发这个软件
- 改造。 该软件可以被修改
- 专利授权。 此许可证提供了一个明确的权利，从收件人的贡献者的专利权。
- 个人使用。 你可以使用和修改软件，而不分发它
- 转授许可证授权。 你可以给予许可的修改和分发本软件给第三方，不包括在许可证。
禁止
- 承担责任。 软件提供无保修和软件作者/许可证所有者不能承担损害赔偿责任。
- 商标使用。虽然这可能是所有许可证的真实性，该许可证明确规定，你可能不使用的名称，商标，或商标的贡献者。
我关心分享改进
GPL（V2和V3）是一个公共的授权，要求那些将你的代码或使源可在同样条件下所衍生的工作。V3与V2，但进一步限制使用，禁止在硬件软件的改变。
Linux，Git，WordPress使用GPL。
公开的源代码必须全部可用，他人可以进行修改使用，但是不能再次授权出许可。
GNU General Public License v2.0
GNU General Public License v3.0
(太长了就不贴了。。。)
要求
- 公开源代码. 源代码必须可用，当分发软件。在LGPL和OSL 3的情况下，该库的源（而不是整个程序）必须是可用的。
- 许可和版权声明. 包括一份详细的代码的许可证和版权声明
- 状态的改变. 显示了显着的变化的代码
许可
- 商业用途。 本软件及衍生物可以用于商业用途
- 分发 。 你可以分发这个软件
- 改造。 该软件可以被修改
- 专利授权。 此许可证提供了一个明确的权利，从收件人的贡献者的专利权。
- 个人使用。 你可以使用和修改软件，而不分发它
禁止
- 承担责任。 软件提供无保修和软件作者/许可证所有者不能承担损害赔偿责任。
- 转授许可证授权。 你可以给予许可的修改和分发本软件给第三方，不包括在许可证。
如果没有这些对我的工作呢？
我的内容不是代码。
创建一个自己的许可证
http://creativecommons.org/choose/
我想要更多的选择。
还有很多许可证可以选择
http://choosealicense.com/licenses/
我不想选择一个许可证。
没有许可证
你没有义务选择一个许可证，这是你的权利，不包括一个与你的代码或项目。但请注意，选择了开源许可并不意味着你选择了版权法。
你必须与你的法律顾问有关你的特殊项目，但一般而言，没有一个许可证意味着默认的版权法适用。这意味着你保留所有的权利，你的源代码，没有人可以复制，分发，或创建衍生作品，从你的工作。
不允许使用您的代码可能不是你所想的“不许可”。一个开源许可证允许您的代码重用而维护版权。如果你的目标是明确的选择了版权保护，尝试一种公共领域奉献像无照或CC0。如果你想和别人分享你的工作，你必须选择它。
即使在许可文件的情况下，你可以在你发布你的源代码到一个需要接受服务条款的情况下给予某些权利。例如，如果您发布的源代码在GitHub上的一个公共库，你接受了服务，允许其他用户的某些权利条款GitHub。具体而言，您允许其他人查看和叉您的存储库。