Electronic commerce auxiliary equipment capable of automatically adjusting height of code scanner according to height of commodity

The invention relates to the technical field of electronic commerce, and discloses electronic commerce auxiliary equipment capable of automatically adjusting the height of a code scanner according tothe height of a commodity. The equipment comprises a limiting seat, a light-emitting bulb is movably connected with the right side of the limiting seat, a mounting seat is movably connected with the bottom of the light-emitting bulb, a photoresistor is movably connected with the bottom of the mounting seat, a light gathering plate is movably connected with the left side of the photoresistor, a connecting circuit is movably connected with the right side of the photoresistor, the light-emitting bulb is driven by an external driving source to operate, the light-emitting bulb generates light to irradiate the surface of a light reflecting plate at the moment, and the light falls into a light gathering plate after being reflected by the light reflecting plate, so that the photoresistor is illuminated; the heights of goo