小编use*_*962的帖子

这是代码

override func viewDidAppear(animated: Bool) { 
    super.viewDidAppear(animated)
    if (PFUser.currentUser() == nil) {
        self.LogInViewController.fields = PFLogInFields.SignUpButton | PFLogInFields.PasswordForgotten | PFLogInFields.DismissButton
    }
}

国王问候