辅导program程序语言、讲解Python编程设计

Pizzaz cinema
Due date 11:59PM Sunday 11 April 2021 (local Sydney
time)
Be aware of daylight savings changes on 4 April 2021.
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Problem description
You are writing an interactive program for a local cinema. The program will allow users to view the
available movies, order tickets for one or multiple persons, and make transactions on the orders.
When ordering tickets, further information about each person can be asked. The order can also
determine if the number of persons in a group can see the movie. Finally, the purchase will involve a
transaction between the cinema involving calculations of nance.
Program data
The program has a predened schedule, room numbers and capacities. For the purposes of this
assignment, this information is xed and will not change. You can include this data in your program
source code.
Schedule of movies, their times and room
The Shining. 1980. 2h 26m. 10:00. Room 1
Your Name. 2016. 1h 52m. 13:00. Room 1
Fate/Stay Night: Heaven's Feel - III. Spring Song. 2020. 2h 0m. 15:00. Room 1
The Night Is Short, Walk on Girl. 2017. 1h 32m. 17:30. Room 1
The Truman Show. 1998. 1h 47m. 19:30. Room 1
Genocidal Organ. 2017. 1hr 55m. 21:45. Room 1
Jacob's Ladder. 1990. 1h 56m. 10:00. Room 2
Parasite. 2019. 2h 12m. 12:15. Room 2
The Dark Knight. 2008. 2h 32min. 14:45. Room 2
Blade Runner 2049. 2017. 2h 44m. 17:45. Room 2
The Mist. 2007. 2h 6m. 21:00. Room 2
Demon Slayer: Mugen Train. 2020. 1h59min. 23:20. Room 2
The Matrix. 1999. 2h 16m. 10:00. Room 3
Inception. 2010. 2h 42m. 11:30. Room 3
Shutter Island. 2010. 2h 19m. 14:30. Room 3
Soul. 2020. 1hr 40m. 17:00. Room 3
Mrs. Brown. 1997. 1h 41min. 19:00. Room 3
Peppa Pig: Festival of Fun. 2019. 1h 8min. 21:00. Room 3
Titanic. 1997. 3h 30min. 22:15. Room 3
Room information
Each room has a dierent capacity and distinct areas for seating. The total number of seats will
become important when considering group bookings.
Key
* - represents empty space for walkways
A , B , C , D , E , - represent a section of seating
Room 1 - 35 seats
****************
*CCC*AAAA*BBB*DD
*CCC*AAAA*BBB*DD
*C*C*AAAA*BBB*DD
****************
Room 2 - 136 seats
***********************
AAA**BBBBB**CCCCCC**EEE
AAA**BBBBB**CCCCCC**EEE
AAA**BBBB**CCCCC**EEE
AAA**BBBB**CCCCC**EEE
AAA**BBBB**CCCCC**EEE
AAA*************EEE
AAAA*DDDDDDDDD*EEEE
AAAA*DDDDDDDDD*EEEE
AAAA*DDDDDDDDD*EEEE
*******************
Room 3 - 42 seats
AAA*BBBB
AAA*BBBB
AAA*BBBB
AAA*BBBB
AAA*BBBB
AAA*BBBB
Program operation
The program will be invoked by running the command
$ python3 pizzaz.py -- []
Where is a command used to control the purpose of the program.
There are three switches in this program:
python3 pizzaz.py --show - Will show all movie information where they begin
after time
python3 pizzaz.py --book - Will process the order and transaction for one person.
python3 pizzaz.py --group - Will process the order and transaction for a group of people.
First message
To complete this, you would need to have completed week 1 lecture and tutorial
For any switch option, at the beginning of the program you will greet the user with a 5 line banner. It
must be 5 lines as follows:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Switch errors
To complete this, you would need to have completed week 2 lecture and tutorial
If there is no switch provided, print the error message and terminate the program. Usage: python3
pizzaz.py [ --show | --book | --group ]
If the switch options are not correct, the program will print an error message and the program will go
to the End of the program.
For example:
$ python3 pizzaz.py --greenhouse
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sorry. This program does not recognise the switch options.
Bye.
$ python3 pizzaz.py haberjabby --book
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sorry. This program does not recognise the switch options.
Bye.
$ python3 pizzaz.py --group abc
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sorry. This program does not recognise the switch options.
Bye.
Switch --show
To complete this, you would need to have completed week 3 lecture and tutorial
With this switch your program will show all the movies starting from the time provided. The
parameter is a 24 hour time format. It will a�ect the output.
Suppose the user wished to see all movies starting from 19:00. The program would print the
following:
$ python3 pizzaz.py --show 19:00
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The Truman Show. 1998. 1h 47m. 19:30. Room 1
Genocidal Organ. 2017. 1hr 55m. 21:45. Room 1
The Mist. 2007. 2h 6m. 21:00. Room 2
Demon Slayer: Mugen Train. 2020. 1h59min. 23:20. Room 2
Mrs. Brown. 1997. 1h 41min. 19:00. Room 3
Peppa Pig: Festival of Fun. 2019. 1h 8min. 21:00. Room 3
Titanic. 1997. 3h 30min. 22:15. Room 3
Bye.
The time format must be correct. If the time entered is not valid, the program will print an error
message and terminate the program
$ python3 pizzaz.py --show
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sorry. This program does not recognise the time format entered.
Bye.
$ python3 pizzaz.py --show abc
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sorry. This program does not recognise the time format entered.
Bye.
Hint: consider writing code to check if a time is valid or not. str.isdigit() can be helpful
Hint: consider converting all time to minutes for checking before after
After the output is shown, the program will go to the End of the program
Switch --book
To complete this, you would need to have completed at least week 3 lecture and tutorial
With this switch your program will process the order for 1 person.
Ask for the name of the movie
The program will ask the user to enter the name of the movie to watch:
What is the name of the movie you want to watch?
If the name of the movie does not exist, ask the user to try again, or quit the program.
Sorry, we could not find that movie. Enter Y to try again or N to quit.
For any answer other than Y , or N , the same question will be repeated.
When the answer is N , the program will go to the End of the program.
When answer is Y another prompt appears:
What is the name of the movie you want to watch?
It does not matter what time of day it is, the movie ticket order could be for the next day.
Once the movie is found, proceed to the next step.
Note: Movie name matching is case-insensitive, but must contain all the characters
Ask about popcorn!
Next, the program will ask the user if they would like a popcorn and if so, what size:
Would you like to order popcorn? Y/N
For any answer other than Y , or N , the same question will be repeated.
When answer Y another prompt appears:
You want popcorn. What size Small, Medium or Large? (S/M/L)
For any answer other than S , M , or L , the same question will be repeated.
Once a valid popcorn option is entered, proceed to the next step.
Generate and print the seat allocation
Next, you will generate the seat number for this person. For a single person, it is always seat number
57.
The seat number for person 1 is #57
For this switch, the next step is Calculating price and itemise details.
Switch --group
To complete this, you would need to have completed at least week 4 lecture and tutorial
With this switch your program will process the order for a group of people.
Ask for the name of the movie
The program will ask the user to enter the name of the movie to watch:
What is the name of the movie you want to watch?
If the name of the movie does not exist, ask the user to try again, or quit the program.
Sorry, we could not find that movie. Enter Y to try again or N to quit.
For any answer other than Y , or N , the same question will be repeated.
When the answer is N , the program will go to the End of the program.
When answer Y another prompt appears:
What is the name of the movie you want to watch?
Once the movie is found, proceed to the next step.
Note: It does not matter what time of day it is, the movie ticket order could be for the next day.
Note: Movie name matching is case-insensitive, but must contain all the characters
Ask for the number of people
Next, the program will ask the user to enter the number of people in the group:
How many persons will you like to book for?
You can always expect an integer number here. If the number of person is 1 or less, ask the user to
try again, or quit the program.
Sorry, you must have at least two customers for a group booking. Enter Y to try again
or N to quit.
For any answer other than Y , or N , the same question will be repeated.
When the answer is N , the program will go to the End of the program.
When the answer is Y , and the number of persons exceeds the capacity of the theater, print the error
message:
Sorry, we do not have enough space to hold people in the theater room of
seats. Enter Y to try a different movie name or N to quit.
, where is the number of persons entered and is the capacity of the room.
When the answer is Y , repeat from the earliest step in the --group switch asking for the movie
name etc.
When the answer is N , the program will go to the End of the program.
Ask about popcorn for each person!
Next, the program will ask the user to enter if each person would like a popcorn and if so, what size:
For person 1, would you like to order popcorn? Y/N
When answer Y another prompt appears: Person 1 wants popcorn. What size Small, Medium or
Large? (S/M/L)
For every person, N persons, the same questions are repeated: For person 2, would you like to
order popcorn? Y/N ... For person , would you like to order popcorn? Y/N
The answer options are to ordering popcorn for one person.
Generate and print the seat allocation
Next, you will generate the seat numbers based on the number of persons and the capacity of the
room. Due to quarantine, every second seat is not available to sit in, and seat numbers must be
evenly spaced.
The seat number for person 1 is #1The seat number for person 2 is #3The seat number
for person 3 is #5 ... The seat number for person N is #(2N+1)
For this switch, the next step is Calculating price and itemise details.
Calculating price and itemise details
To complete this, you would need to have completed at least week 3 lecture and tutorial
In either case for a single person or a group of people, you will need to calculate price and itemise the
details of the order.
The prices of tickets and popcorn will be as follows:
Tickets are $13.00 for movies starting before 16:00 and $15.00 for movies starting from
16:00 .
Popcorn will cost $3.50 for small, $5.00 for medium and $7.00 for large.
You will print the breakdown of the entire cost. Use the padding to format your output (see next
section for formatting).
Example for one person (--book switch):
For 1 person, the initial cost is $18.00
Person 1: Ticket before 16:00 $13.00
Person 1: Medium popcorn $ 5.00
No discounts applied $ 0.00
The final price is $18.00
Another example for one person (--book switch, no popcorn):
For 1 person, the initial cost is $15.00
Person 1: Ticket from 16:00 $15.00
No discounts applied $ 0.00
The final price is $15.00
Example for a group (--group switch):
For 5 persons, the initial cost is $87.00
Person 1: Ticket before 16:00 $13.00
Person 1: Medium popcorn $ 5.00
Person 2: Ticket before 16:00 $13.00
Person 2: Medium popcorn $ 5.00
Person 3: Ticket before 16:00 $13.00
Person 3: Medium popcorn $ 5.00
Person 4: Ticket before 16:00 $13.00
Person 4: Small popcorn $ 3.50
Person 5: Ticket before 16:00 $13.00
Person 5: Small popcorn $ 3.50
No discounts applied $ 0.00
The final price is $87.00
There is an entry for discount. See the next section Group Discount! for understanding when and
how it applies.
Formatting the output
Notice that the output of these examples align. To do this, you should consider using the ljust and
rjust string functions.
person_counter = 4
ticket_time_type = 'before 16:00'
ticket_price = '13.00'
print(' Person {}: Ticket {}'.format(person_counter, ticket_time_type).ljust(34, ' ')
+ '$' + '{}'.format(ticket_price).rjust(5, ' '))
person_counter = 4
popcorn_size = 'Large'
popcorn_price = '7.00'
print(' Person {}: {} popcorn'.format(person_counter,popcorn_size).ljust(34, ' ') + '$
' + '{}'.format(popcorn_price).rjust(5, ' '))
For the switch option --book, the next step is Transact and give change.
For the switch option --group, the next step is Group Discount!.
Group Discount!
For the --group option only.
Discounts apply if the group purchase price exceeds $100. The discount is automatically 10% o� for
each person's movie ticket and 20% o� for each persons popcorn.
After discounts are applied, all �nal prices are rounded to the nearest 5 cent value.
$5.01 -> $5.00
$5.02 -> $5.00
$5.03 -> $5.05
$5.04 -> $5.05
$5.06 -> $5.05
$5.07 -> $5.05
$5.08 -> $5.10
$5.09 -> $5.10
Example for a group with a purchase of $103.50:
For 6 persons, the initial cost is $103.50
Person 1: Ticket before 16:00 $13.00
Person 1: Medium popcorn $ 5.00
Person 2: Ticket before 16:00 $13.00
Person 2: Medium popcorn $ 5.00
Person 3: Ticket before 16:00 $13.00
Person 3: Medium popcorn $ 5.00
Person 4: Ticket before 16:00 $13.00
Person 4: Small popcorn $ 3.50
Person 5: Ticket before 16:00 $13.00
Person 5: Small popcorn $ 3.50
Person 6: Ticket before 16:00 $13.00
Person 6: Small popcorn $ 3.50
Discount applied tickets x6 -$ 7.80
Discount applied popcorn x6 -$ 5.10
The final price is $90.60
Example for a group with a purchase of $107.90 where there are persons without popcorn:
For 6 persons, the initial cost is $107.00
Person 1: Ticket from 16:00 $15.00
Person 1: Medium popcorn $ 5.00
Person 2: Ticket from 16:00 $15.00
Person 2: Medium popcorn $ 5.00
Person 3: Ticket from 16:00 $15.00
Person 4: Ticket from 16:00 $15.00
Person 4: Small popcorn $ 3.50
Person 5: Ticket from 16:00 $15.00
Person 6: Ticket from 16:00 $15.00
Person 6: Small popcorn $ 3.50
Discount applied tickets x6 -$ 9.00
Discount applied popcorn x4 -$ 4.80
The final price is $93.20
Warning: For oating point number calculations you should perform rounding to two decimal places
only when printing the number. Please use round( , 2 ) for that number.
Note: To accommodate the discount formatting, consider the following format string:
person_count = 6
popcorn_counter = 4
ticket_discount_print = round(9, 2)
popcorn_discount_print = round(4.8, 2)
print(' Discount applied tickets x{}'.format(person_count).ljust(33, ' ') + '-$' + '{:
.2f}'.format(ticket_discount_print).rjust(5, ' '))
print(' Discount applied popcorn x{}'.format(popcorn_counter).ljust(33, ' ') + '-$' +
'{:.2f}'.format(popcorn_discount_print).rjust(5, ' '))
For the switch option --group, the next step is Transact and give change.
Transact and give change
When a payment is required, you will need to prompt the user to pay. Ask for the amount of cash
they will pay and calculate the change required. The change generated should be outputted to the
user in forms of Australian currency denominations. These are:
Note that your program should output the least number of notes/coins to make up the change. You
may assume that the input will always be a positive �oating point number with at most two decimal
points.
If the user's payment is not enough, prompt them appropriately. See examples below.
Examples of Program Execution
Standard example:
For 1 person, the initial cost is $18.50
Person 1: Ticket from 16:00 $15.00
Person 1: Small popcorn $ 3.50
No discounts applied $ 0.00
The final price is $18.50
Enter the amount paid: $50.50
Change: $32.00
$20: 1
$10: 1
$ 2: 1
Not enough money:
For 1 person, the initial cost is $18.50
Person 1: Ticket from 16:00 $15.00
Person 1: Small popcorn $ 3.50
No discounts applied $ 0.00
The final price is $18.50
Enter the amount paid: $15
The user is $3.50 short. Ask the user to pay the correct amount.
Enter the amount paid: $20
Change: $1.50
$ 1: 1
50c: 1
User enters in an amount that isn't divisible by 5c:
For 1 person, the initial cost is $18.50
Person 1: Ticket from 16:00 $15.00
Person 1: Small popcorn $ 3.50
No discounts applied $ 0.00
The final price is $18.50
Enter the amount paid: $19.02
The input given is not divisible by 5c. Enter a valid payment.
Enter the amount paid: $19.20
Change: $0.70
50c: 1
20c: 1
The next step is End of the program
End of the program
Always print Bye. at the end of the program. Whether the order, or transaction was successful or
not.
Tips and error cases to consider
You should always print an empty line directly before asking the user for a command.
switches, searches and answers to questions are case-insensitive. For example,
when answering a Y/N question, Y is valid, and y is valid.
when searching for a movie, Fate/Stay Night: Heaven's Feel - III is valid, and
Fate/staY Night: HEAVEN's Feel - iii is also valid.
To print a string containing single quotes, enclose it in double quotes, and vice versa (or put a
backslash before it).
For the purposes of this assignment, you can treat all monetary values as oats - none of the
test cases will cause oating point errors, however be mindful of rounding values when printing
their result.
Getting started
switch --show is the easiest. You need to perform a search of sorts and you should rst place
the movie data into variables, or even a list.
switch --book is the next easiest, it requires careful ow control and calculation
switch --group is the hardest and requires more consideration of ow control, calculation, lists
and formatting.
Aim for the easy examples rst. Things that you know are supposed to work.
Full examples
Show
$ python3 pizzaz.py --show 17:00
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The Night Is Short, Walk on Girl. 2017. 1h 32m. 17:30. Room 1
The Truman Show. 1998. 1h 47m. 19:30. Room 1
Genocidal Organ. 2017. 1hr 55m. 21:45. Room 1
Blade Runner 2049. 2017. 2h 44m. 17:45. Room 2
The Mist. 2007. 2h 6m. 21:00. Room 2
Demon Slayer: Mugen Train. 2020. 1h59min. 23:20. Room 2
Soul. 2020. 1hr 40m. 17:00. Room 3
Mrs. Brown. 1997. 1h 41min. 19:00. Room 3
Peppa Pig: Festival of Fun. 2019. 1h 8min. 21:00. Room 3
Titanic. 1997. 3h 30min. 22:15. Room 3
Bye.
Book
$ python3 pizzaz.py --book
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Welcome to Pizzaz cinema ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-=-=-=-=-=-=-=-=-=-=-=-=-=-=
What is the name of the movie you want to watch? The Mist
Would you like to order popcorn? Y/N Y
You want popcorn. What size Small, Medium or Large? (S/M/L) G
You want popcorn. What size Small, Medium or Large? (S/M/L) L
The seat number for person 1 is #57
For 1 person, the initial cost is $22.00
Person 1: Ticket from 16:00 $15.00
Person 1: Large popcorn $ 7.00
No discounts applied $ 0.00
The final price is $22.00
Enter the amount paid: $36
Change: $14.00
$10: 1
$ 2: 2
Bye.
Group 1
$ python3 pizzaz.py --group
Group 2
$ python3 pizzaz.py --group
Group 3
$ python3 pizzaz.py --group
Code Submission
Your code submission must be made via Ed in this lesson.
To make a submission, you will need to press the "Mark" button.
The following rules apply to your code submission:
Only the le pizzaz.py will be graded by the automarker
Only the last submission will be graded.
Only the nal README.md le of the last submission will be graded by your tutor
Submission after the due date will incur a late penalty as described in the unit of study outline.
Your submission must be able to compile and run within the Ed environment provided.
After each submission, the marking system will automatically check your code against the public test
cases.
The Python version is that which is presently being used on Ed system:
$ python3 --version
Python 3.9.2
Please ensure you carefully follow the assignment specication. Your program output must exactly
match the output shown in the examples.
Late is late!
The computer does not discriminate about what is late. There are two les for submission
pizzaz.py
README.md
They are both in your Ed workspace. Make sure these are the ones for your submission.
Changes to these les after the deadline will incur a penalty for both (not individually).
Marking criteria
This assignment is 15% of your nal course grade.
The grade you will receive is based on the number of test cases passed as well as manual grading by
your tutor.
We have provided you with some sample test cases but these do not test all the functionality
described in the assignment. It is important that you thoroughly test your own code.
Automatic tests 10 / 15
These are marked by a computer.
There are public test cases
There are hidden test cases
There are private test cases
Manual grading 5 / 15
The manual grading from your tutor will consider the style, layout and comments you provide in
your code. Your tutor will not be debugging or running your code against any test cases.
edit the README.md le to describe the parts you have completed and the general structure of
your code. Maximum 500 words. See scaold le directory in Ed.
describe how you store and access the movie data
describe how you have done error checking on the time data and how you have
compared two dierent times
list each of the idioms "search tasks" you have used in your solution
in your code le pizzaz.py:
Please ensure your code is comprehensible for the purposes of marking. We recommend
that your code adheres to the PEP 8 style guide https://www.python.org/dev/peps/pep-
0008/
Please use comments or docstrings for sections of code to explain the section's purpose.
e.g. the following block of code will "search for", "calculate", "get input for options" etc.
Academic declaration
By submitting this assignment you declare the following:
I declare that I have read and understood the University of Sydney Academic Dishonesty and
Plagiarism in Coursework Policy, and except where specically acknowledged, the work contained in
this assignment or project is my own work, and has not been copied from other sources or been
previously submitted for award or assessment.
I understand that failure to comply with the the Academic Dishonesty and Plagiarism in Coursework
Policy, can lead to severe penalties as outlined under Chapter 8 of the University of Sydney By-Law
1999 (as amended). These penalties may be imposed in cases where any signicant portion of my
submitted work has been copied without proper acknowledgement from other sources, including
published works, the internet, existing programs, the work of other students, or work previously
submitted for other awards or assessments.
I realise that I may be asked to identify those portions of the work contributed by me and required to
demonstrate my knowledge of the relevant material by answering oral questions or by undertaking
supplementary work, either written or in the laboratory, in order to arrive at the nal assessment
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I acknowledge that the School of Computer Science, in assessing this assignment, may reproduce it
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Warning: Any attempts to deceive or disrupt the marking system will result in an immediate zero for
the entire assignment. Negative marks can be assigned if you do not properly follow the assignment
description, or your code is unnecessarily or deliberately obfuscated.