Abstract: Disclosed are a device of complex gas mixture detection based on optical-path-adjustable spectrum detection and a method therefor, and the device includes: a light source configured for generating an incident beam and emitting the incident beam into an optical gas cell; the optical gas cell, including a cavity configured for accommodating a gas sample, and a reflection module group configured for reflecting the incident beam and a track arranged in the cavity, where the track is consistent with a light path of the light beam in the cavity; a detector module that is connected with the track in a relatively movable manner and is configured for receiving light beams and obtaining spectral data, where an optical path is changed by moving the detector module relative to the track; and a data acquisition unit that is configured for acquiring the spectral data obtained by the detector module.

Abstract: A communication number updating method is provided. The method includes obtaining an old communication number and a new communication number used by a same user account of an instant messenger for a user of the old communication number and the new communication number, generating a communication number change message which carries the old communication number and the new communication number, sending the communication number change message to a contact of the user account through the instant messenger, so that the instant messenger logged in by the contact of the user account automatically accesses a local address book and add the new communication number in a communication entry of the old communication number in the local address book.

Abstract: A communication number updating method is provided. The method includes obtaining an old communication number and a new communication number used by a same user account of an instant messenger for a user of the old communication number and the new communication number, generating a communication number change message which carries the old communication number and the new communication number, sending the communication number change message to a contact of the user account through the instant messenger, so that the instant messenger logged in by the contact of the user account automatically accesses a local address book and add the new communication number in a communication entry of the old communication number in the local address book.