QU Printing is a label editing and printing software based on SaaS and local storage. The main technical features include bar code two-dimensional code scanning identification input, form and serial number data source input, label printing output, etc. The main functions include scanning and printing, label reminder and label template creation, multi-element editing, multi-terminal storage and label printing including the number of copies, direction, imitation volume adjustment. Realize the requirements of flexible editing and portable printing of commodity labels, life labels, etc.