/// <summary>
/// 清空用户隐私设置（用于恢复到默认设置）
/// </summary>
/// <param name="userId"></param>
public void ClearUserPrivacySettings(long userId)
{
//done:zhangp,by zhengw:同时清空用户隐私设置表和指定对象表中的用户数据
userPrivacySettingRepository.ClearUserPrivacySettings(userId);
}