我不认为你可以，因为 +1 API 不是公开的(在撰写本文时).

I don't think you can since the +1 API is not public (at the time of writing this).

然而，您可以在此处配置按钮外观:

You can however configure the button looks here:

http://www.google.com/webmasters/+1/button/

此外，您可以尝试找出 +1 脚本，看看您是否可以破解某些内容:

Also, you can try to figure out the +1 script and see if you can hack something:

https://apis.google.com/js/plusone.js