Control method, control device, and non-volatile storage medium

The invention provides a control method, a control device and a nonvolatile storage medium. The control method comprises the following steps: judging whether an air conditioner in a defrosting mode meets a defrosting quitting condition or not; when the air conditioner does not meet the defrosting quitting condition, the air conditioner is controlled to continue to be kept in the operation defrosting mode; when the air conditioner meets the defrosting quitting condition, the air conditioner is firstly controlled to enter a defrosting quitting mode, and in the defrosting quitting mode, the opening of an electronic expansion valve of the air conditioner is Pa; and then, the air conditioner is controlled to enter a heating mode, the opening degree of an electronic expansion valve of the air conditioner is adjusted to be Pb, and Pb is larger than Pa. Through the technical scheme provided by the invention, the technical problem of abnormal noise caused by defrosting during heating of the air conditioner in the prio