Introduction - If you have any usage issues, please Google them yourself
Simulation Pos cash register 1. Cashier function 1) Add Details (F2) 2) delete the details of (F3) 3) cash register (F4) 4)挂单(F5) 5) get a single (F6) 6) cancellation (F7) 7) Return (F8) 8) exit (F9) 2. administrator function 1) commodity management