如何通过更改随机数进行循环？

Question

I want to make a game that will generate multipication equations. I want to make it that you will get a simple multipication equation (ex: 5*6) and when you answer it, the program will tell you if you are correct, and then will go to the next random equation. I know how to make it with a lot of different random numbers, but this will make the code very long and not ellegant. I need a way to generate two different random numbers every time, without having to make a data base of let's say 20 different random numbers. Does anyone know how to do it? Thanks!

This is the code I've wrote so far:

import random
import sys
import os

random_num1 = random.randrange(1, 10)
random_num2 = random.randrange(1, 10)

print(random_num1, 'X', random_num2, '=', )

def multiplication(random_num1, random_num2):
    sumNum = random_num1 * random_num2
    return sumNum

one = input()

if(int(one) == multiplication(random_num1, random_num2)):
    print('true')
else:
    print('false')

Answer 1

Put all of your code into a while loop that never ends using while True: (and don't forget to move everything inside by one tab to the right).

It's advisable to move def multiplication out of the while loop though.

Answer 2

You could easily do it with a function and a while loop. Let's say, you want to play 10 times and want the score at the end.

def multiplication(random_num1, random_num2):
    sumNum = random_num1 * random_num2
    # Indentation fixed
    return sumNum

def play() : 
    random_num1 = random.randrange(1, 10)
    random_num2 = random.randrange(1, 10)

    print(random_num1, 'X', random_num2, '=', )

    one = input()

    if(int(one) == multiplication(random_num1, random_num2)):
       return 1
    else:
       return 0

if __name__ == '__main__' :
    number_of_play = 10
    cpt = 0
    result = 0
    while cpt < number_of_play :
        cpt+=1
        cpt += play()
    print "Wow you perform {} out of {}".format(result, number_of_play)

Answer 3

Here it is a simple example made by me (EDITED with "try" statement):

from random import randint

while 1:
    numA = randint(0,9)
    numB = randint(0,9)
    result = numA * numB

    print("\nFirst number:", numA)
    print("Second number:", numB)

    while 1: 
        try: 
            userResult = int(input("Insert your multiplication result: ")) 
            break
        except: 
            print("Error! The given digit is not a number. Retry :")

    if userResult == result:
        print("Bravo! That's right!")
    else:
        print("Damn! That's wrong!")

I've tried to be as clear as possible. I hope it was useful for you.