Introduction - If you have any usage issues, please Google them yourself
A mall has a 100-space car park, when parking spaces under the vehicle waiting to enter and timing when parking is full, you must leave a vehicle, a vehicle waiting to enter calculated when the vehicle left the residence of the time and costs according to one yuan per hour.
Enter the information format cars can be (enter/leave, license plate number, entry/departure time), you can always display the requested information and vehicle parking fees in history.