How to check cigarettes by SMS

Wechat can scan. First, open the mobile client and find the WeChat software in the mobile phone. Find the WeChat icon, click the WeChat software and enter the WeChat client interface. After entering the client, find the scanning function of WeChat at the bottom of the circle of friends, and click Scan to enter the code scanning interface. Find the location of the independent bar code on the cigarette, aim the rear camera of the mobile phone at the bar code on the cigarette, scan the QR code, and the information will be presented.

Knowledge expansion:

There are two kinds of short messages: one is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals, and the number of characters that users can receive and send short messages at a time is 160 English or digital characters or 70 Chinese characters. One is MMS. Its biggest feature is that it supports multimedia functions and can transmit comprehensive content and information, including text, images, sounds, data and other multimedia formats.

According to the American science and technology news website Engadget,19921February 3, 992, Neil Papworth, a communication engineer, sent the first short message in human history. At that time, he wrote "Merry Christmas" on his computer and sent it to Richard Jarvis, an executive of British mobile operator Vodafone. Such a small beginning has gradually changed the way of communication and communication in human society.