def send_simple_to_all(title, content)
      result = []
      [@android, @ios].each do |sender|
        result << sender.pushToAllDevice(title,content)
      end
      result
    end
def send_simple_to_all(title, content)
      result = []
      [@android, @ios].each do |sender|
        result << sender.pushToAllDevice(title,content)
      end
      result
    end
发送简单消息到所有 android , ios 设备