在 Python 中为用户输入赋值

Question

I would like to assign a numeric value dependent on user input.

Now would I would like is for the user to type in the 2nd place driver. What ever driver name is typed in would be assigned 2 points for finishing second. Same deal with first place except they get 3 points.

All possible drivers names are set to 0 before the program runs. Those are the possible names the user can type in.

I'm not exactly sure I would do this in Python, and help would be appreciated.

Matt_Kenseth = 0
Kyle_Busch = 0
Joey_Logano = 0
Aric_Armirola = 0
Dale_Earnhardt_Jr = 0
Denny_Hamlin = 0
Jeff_Gordon = 0
Brad_Keselowski = 0
Jimmie_Johnson = 0
Clint_Bowyer = 0
Carl_Edwards = 0
Kyle_Larson = 0
Jamie_McMurray = 0
Kevin_Harvick = 0
Kurt_Busch = 0
Ricky_Stenhouse_Jr = 0
David_Ragan = 0
Kasey_Kahne = 0
Danica_Patrick = 0
Ryan_Newman = 0
Casey_Mears = 0
Brian_Scott = 0
Trevor_Bayne = 0
AJ_Allmendinger = 0
Justin_Allgaier = 0
Paul_Menard = 0
Austin_Dillon = 0
Sam_Hornish_Jr = 0
Tony_Stewart = 0
Landon_Cassill = 0
Greg_Biffle = 0
Martin_Truex_Jr = 0
David_Gilliland = 0
JJ_Yeley = 0
Brett_Moffitt = 0
Matt_DiBenedetto = 0
Alex_Bowman = 0
Cole_Whitt = 0
Jeb_Burton = 0
Jeffrey_Earnhardt = 0
Reed_Sorenson = 0
Michael_McDowell = 0
Michael_Annett = 0

int ( input ( "Enter 1st Place Driver In Race.\nThis driver will receive 20 points. " ) )

int ( input ( "Enter 2nd Place Driver In Race.\nThis driver will receive 10 points. " ) )

int ( input ( "Enter 3rd Place Driver In Race.\n This driver will receive 5 points. " ) ) 

I'm very new at programming so sorry if I'm not making much sense. If the user types in one of the drivers listed above for example for 1st place, then I would like that driver to go from 0 to 20 (the value for a 1st place finish).

Answer 1

Why don't you put all those drivers in a Dictionary with all the values set to 0 ? Something like this:

All_Drivers = {"Justin_Allgaier": "0", "Jeb_Burton" : "0"}

If you want to change the drivers value you assigned to it based on the user input,here's a very simple example:

#Assigning driver names in a dictionary
All_Drivers = {"Justin_Allgaier": "0", "Jeb_Burton" : "0"}

#We're attributing a variable to the user input here
first_place_driver_name = input("Enter 1st place driver\n>")

#Here the for loop is itterating through all the keys in the dictionary and assigning all the keys to the "keys" variable, we can also assign all the values by passing an extra variable
for keys in All_drivers:
    #Now we're using an If statement to check if the name passed by the user matches a key in the dictionnary, if it does, it assigns the value 20 to the correct key.
    if first_place_driver_name == keys:
        All_Drivers[keys] = 20
#Now we're printing all the keys and values in the dictionary.
print(All_Drivers)

In this example the first driver received 20points, Try this out with your Driver names, it should work. If you need more information about For loops, If statements and dictionaries check out the Python documentation or search on stackoverflow. To print out a specific value of a key in your dictionary you would need to specify the specific key like this All_Drivers["Justin_Allgaier"] . You might also want to limit what the user can input but i hope this solution can help you.