Open WeChat and scan

Many software on mobile phones now have barcode scanning functions. Just turn on the function and scan the barcode. First open WeChat on your phone and click Discover. Click Scan and a small box will appear. Align the box with the barcode and start scanning.

Soon the mobile phone will obtain the barcode information, so that the barcode information will be displayed on the mobile phone screen. A barcode is a graphical identifier that expresses a set of information by arranging multiple black bars and blanks of varying widths according to certain encoding rules.

A common barcode is a pattern of parallel lines arranged by black bars (referred to as bars) and white bars (referred to as spaces) with widely different reflectivities. Barcodes can indicate the country of production, manufacturer, product name, production date, book classification number, mail starting and ending location, category, date and many other information. Therefore, they are used in many fields such as commodity circulation, library management, postal management, and banking systems. Be widely used.