如果已有google帐号或者gmail,这一步可以跳过。注册地址https://accounts.google.com/NewAccount 使用第一步的帐号注册个GAE https://appengine.google.com/ 创建一个Application 创建成功以后会发现如下英文 If you use Google authentication for your application, Agent will be displayed on Sign In pages when users access yo More