First of all, I think whether the dormitory needs to be disconnected at night depends on the grade. If it is a junior high school, it must be cut off at the beginning of the night. Junior high school and senior high school should be the time for us to study hard. At this time, our self-control ability needs to be improved. If we are too addicted to playing mobile phones, it will not only consume our energy excessively, but also reduce our learning efficiency. At night, timely disconnection of the internet and electricity can help us develop a good study and life routine. In order to study better. If it is in a university, I don't agree to the power outage at night. However, according to the data, more and more college students become low-headed, playing mobile phones in class, going out to play mobile phones, playing games, chasing dramas and so on. When I go back to the dormitory at night, I even have less communication with my roommates. I think this is a very serious social problem. We should attach great importance to this phenomenon, reflect on ourselves, and prevent ourselves from becoming smart and eager to learn, and have to bury ourselves in the light to play mobile phones.