由于你的代码甚至不试图去你想要做什么，我建议在看的 http://code.google.com/apis/picasaweb/docs/2.0/developers_guide_protocol.html#Auth 并打开一个新的问题，解决你可能有任何顾虑。

Since your code does not even attempt to get the Authentication Token required to do what you want I suggest looking at http://code.google.com/apis/picasaweb/docs/2.0/developers_guide_protocol.html#Auth and open a new question to address any concerns you might have.