Whether the computer is turned on or not is related to my previous playing computer in hot weather.

It probably has something to do with it. It may be that the computer's heat dissipation is not very good. Laptops are protected from overheating. If the heat dissipation is not good, it will automatically turn off after the computer is turned on. The fan is easy to accumulate dust. Turn it on and clean it, and try again. Desktop computers are also prone to black screen when working at high temperature. It may be better to open the chassis to clean up the dust.