You can certainly change the license on the Google Code front page for your project by using the Administer tab. This of course will not change any license information in the source itself, which is a good reason for not putting such information in the source.
If you are asking "is it OK to change the license", then if you are the copyright holder, yes it is. Doing so will not however revoke the previous license for existing users of your code.
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您当然可以使用“管理”选项卡在 Google 代码首页上更改项目的许可证。这当然不会更改源代码本身中的任何许可证信息，这是不将此类信息放入源代码中的一个很好的理由。
如果您问“可以更改许可证吗”，那么如果您是版权所有者，那么可以。但是，这样做不会撤销代码现有用户的先前许可证。
You can certainly change the license on the Google Code front page for your project by using the Administer tab. This of course will not change any license information in the source itself, which is a good reason for not putting such information in the source.
If you are asking "is it OK to change the license", then if you are the copyright holder, yes it is. Doing so will not however revoke the previous license for existing users of your code.
转到“管理”->“项目摘要”并在那里进行更改。您需要自行更新来源的版权。
Go to administer->project summary and change it there. Copyrights in sources you need to update yourself.