The cinema ballot function can be implemented through canvas by following the steps below:
Draw a seat pattern: Use a canvas to create a seat pattern, which can represent each seat in a rectangle or circle, and add different colors to indicate the status of that seat (sold, selected, optional, etc.). Add mouse events: Add mouse events, such as mouse movement and mouse click, to implement user interaction. For example, when a user clicks on a seat, the status of the seat is changed to Selected and the color of the seat pattern is updated. Count the selected seats: During the process of user balloting, you need to count the number and location of the selected seats, and display the ballot information to the user. This can be achieved by iterating through the array of seat patterns. Add checks: To prevent users from making mistakes during the ballot process, you can add checks, such as checking whether a seat has been sold or has been selected by someone else. Add confirmation and payment functions: When the user chooses a seat, they need to confirm and pay, which can be achieved by popping up a confirmation dialog box and sending the user's ballot information to the background for processing. **The implementation is as follows
Confirm and pay