Abstract: A method including obtaining a first interaction content matching an interaction triggering event when the interaction triggering event is detected during play of a video; and displaying or playing the first interaction content. When the interaction triggering event is detected during play of the video, the first interaction content matching the interaction triggering event is obtained, and the first interaction content is displayed and/or played. The video interaction method and apparatus according to example embodiments of the present disclosure interact with the user when the user watches the video, accompany the user to watch the video, and timely answer the user's questions, thereby greatly improving the user's experience in watching the video.

Abstract: A fan driving circuit includes a temperature sensor, a super input and output (SIO) chip, an integrator, a feedback circuit, and a control circuit. The temperature sensor is configured for measuring a temperature of a computer component and outputting a temperature signal according to the measured temperature. The SIO chip is configured for converting the temperature signal into a digital pulse width modulation (PWM) signal. The integrator is configured for converting the PWM signal into an analog signal. The feedback circuit is configured for processing a driving voltage powering a fan to dissipate heat from the computer component and outputting a feedback signal for to compare with the analog signal. The control circuit is configured for comparing the feedback signal with the analog signal and outputting a new driving voltage to control the speed of the fan.