A numerical value selecting method for selecting a numerical value, executable by a terminal comprising: a display, an acquisition unit configured to acquire operational gesture input by a user, and a processor, the method comprising: displaying a numerical value selecting interface having a numerical scale on the display; acquiring, by the acquisition unit, an operational gesture input by a user; identifying, by the processor, whether the operational gesture is a first operational gesture or a second operational gesture preset; in response to the operational gesture being the first operational gesture, increasing a scale unit of the numerical scale; and in response to the operational gesture being the second operational gesture, decreasing the scale unit of the numerical scale, wherein the first operational gesture is one of a movement of two fingers moving toward each other and a movement of the two fingers moving away from each other, and the second operational gesture is the other of the movement of the two fingers moving toward each other and the movement of the two fingers moving away from each other, wherein the numerical value selecting interface further comprises a pointer used together with the numerical scale to indicate a numerical value selected at present, and the method further comprises: identifying, by the processor, whether the operational gesture is a preset third operational gesture, the third operational gesture comprising a movement of a finger in one direction; in response to the operational gesture being the third operational gesture, controlling the scale or the pointer to move along the one direction in which the finger moves in the third operational gesture; characterized by acquiring a number N of consecutive occurrences of the third operational gesture, wherein the interval between any two consecutive occurrences is not greater than a preset time threshold; determining whether the number N of consecutive occurrences of the third operational gesture exceeds a preset threshold; and in response to the number N of consecutive occurrences of the third operational gesture exceeding the threshold, displaying a second operation prompt on the numerical value selecting interface, the second operation prompt being configured to notify the user that the scale unit is to be increased through the first operational gesture and/or decreased through the second operational gesture. displaying a numerical value selecting interface having a numerical scale on the display; acquiring, by the acquisition unit, an operational gesture input by a user; identifying, by the processor, whether the operational gesture is a first operational gesture or a second operational gesture preset; in response to the operational gesture being the first operational gesture, increasing a scale unit of the numerical scale; and in response to the operational gesture being the second operational gesture, decreasing the scale unit of the numerical scale, wherein the first operational gesture is one of a movement of two fingers moving toward each other and a movement of the two fingers moving away from each other, and the second operational gesture is the other of the movement of the two fingers moving toward each other and the movement of the two fingers moving away from each other, wherein the numerical value selecting interface further comprises a pointer used together with the numerical scale to indicate a numerical value selected at present, and the method further comprises: identifying, by the processor, whether the operational gesture is a preset third operational gesture, the third operational gesture comprising a movement of a finger in one direction; in response to the operational gesture being the third operational gesture, controlling the scale or the pointer to move along the one direction in which the finger moves in the third operational gesture; characterized by acquiring a number N of consecutive occurrences of the third operational gesture, wherein the interval between any two consecutive occurrences is not greater than a preset time threshold; determining whether the number N of consecutive occurrences of the third operational gesture exceeds a preset threshold; and in response to the number N of consecutive occurrences of the third operational gesture exceeding the threshold, displaying a second operation prompt on the numerical value selecting interface, the second operation prompt being configured to notify the user that the scale unit is to be increased through the first operational gesture and/or decreased through the second operational gesture. identifying, by the processor, whether the operational gesture is a preset third operational gesture, the third operational gesture comprising a movement of a finger in one direction; in response to the operational gesture being the third operational gesture, controlling the scale or the pointer to move along the one direction in which the finger moves in the third operational gesture; characterized by acquiring a number N of consecutive occurrences of the third operational gesture, wherein the interval between any two consecutive occurrences is not greater than a preset time threshold; determining whether the number N of consecutive occurrences of the third operational gesture exceeds a preset threshold; and