订座系统
各位高手，有个电影院订座的作业，请您帮手：1. 60座位影院。。
2. 向客人展示座位，并请客户选择位置
3. 可同时选择多个座位
4. 如座位不可用，给客户信息并请他重选
5. 最好可以用上map 和 try-except-else
6. 最后告知售票的数量、上座率和已经赚取的收入。
7.有方法预防客人选择不可用的座位。 请高手帮忙检查一下，并加上最后的6、7项次。感谢！
# Ticket Booking System.
def print_tickets():
"""Print the tickets of the user."""
for user_name, seats in user_tickets.items():
print(f"\nYou, {user_name.title()}, have chosen {len(seats)} seat(s).")
for seat in seats:
print(f"\tSeat number: {seat}")
# Empty dictionary to store info later on.
user_tickets = {}
# List of seats the user can choose from.
available_seats = ['1a', '2a', '10b', '10d', '10e', '10g', '10f', '8f', '8a', '9g' ]
# All prompts.
start_prompt = "\nWould you like to start booking your ticket? (yes/no) "
wanted_seats_prompt = "\nHow many seats are you booking today?"
wanted_seats_prompt += "\nEnter the number: "
name_prompt = "What is your name? "
seat_prompt = "\nPlease enter the number of the seat you would like to book: "
go_again_prompt = "Would you like to let someone else book their tickets? (yes/no) "
print("Welcome To The Seat Booking Portal!")
# Ask the user if he would like to start booking their tickets.
start = input(start_prompt)
if start.lower() == 'yes':
# Runs until it reaches a break statement.
while True:
# Empty list to store the seat(s) the user has chosen.
seats = []
# Find out how many times to run the while loop.
wanted_seats = input(wanted_seats_prompt)
# Convert the string representation of the number to an integer representation.
wanted_seats = int(wanted_seats)
# If the user has asked for more seats than the number of seats
# available execute this block.
if wanted_seats > len(available_seats):
print(f"\n--I'm sorry, we only have {len(available_seats)} "
"seats available--")
print("--Please try again--")
continue
# Ask for the users name.
user_name = input(name_prompt)
# Run until the user has chosen the requested number of seats.
while True:
# Show the user the available seats.
print("\nHere are the available seats:")
for seat in available_seats:
print(seat)
# Ask the user for their chosen seat number.
seat = input(seat_prompt)
# If the user has entered a seat that is in the 'available_seats'
# list; remove it from the 'available_seats' list.
if seat in available_seats:
available_seats.remove(seat)
# The user has entered a seat that is not in the 'avialbe_seats' list.
# Ask for their seat again.
else:
print("\n--I'm sorry you have chosen an invalid seat--"
"\n-Please try again-")
continue
# Add the chosen seat to the 'seats' list
seats.append(seat)
# If the user has said that they are going to book more than one seat
# go through this seat booking 'while' loop again.
if wanted_seats > 1:
print("\nYou can now choose another seat.")
# The loop will run a limited number of times.
# It will only 'continue' when there is more than one 'wanted_seat'.
wanted_seats-=1
continue
else:
break
# Add the 'user_name' variable and 'seats' list to the 'user_tickets' dictionary.
user_tickets = seats
#If their are any available seats left ask the user if he
# wants to let another person book their tickets.
if available_seats:
go_again = input(go_again_prompt)
if go_again == 'no':
break
else:
break
print_tickets()
print("\nWe will now redirect you to the payment portal."
"\nThank You for choosing us.")
else:
print("You can always come by later!")
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