您可以指定 login_hint =user@domain.com 在授权URL中带有用户名，以告诉AAD用户可以使用哪个帐户。如果他们已经登录，则不会提示用户选择帐户。

You can specify login_hint=user@domain.com with the username in the authorization URL to tell AAD which account the user could use. If they are already signed-in, it won't prompt the user to select the account.