我会让它短：是有可能得到用户的Facebook的电子邮件地址（或散列的电子邮件地址），这样我就可以让我们说，他在我的数据库的电子邮件比较他的Facebook电子邮件？我试图让一个FacebookUser，然后用facebookUser.email_hash但不返回任何内容。

I'll make it short: is it possible to get the user's facebook email adress (or a hashed email adress), so I can let's say compare his facebook email with his email in my database? I'm trying to get a FacebookUser and then use facebookUser.email_hash but that returns nothing.

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类似的问题已经的在这里问。

和，我不认为FB API 目前赠送用户的电子邮件地址。

and, I don't think fb api currently gives away the user email addresses.