允许用户重新启动或退出它的Python程序

Question

I want this program to allow users to restart the game when they are through or exit it if they do not want to play the game again, but I cant figure out how to do it. Can you please help me with the code that makes the program do that? Please correct me if I mistype the code below. Below is the code of the game I have written using python:

import random

secret_number = random.randrange(1, 101)

guess = 0
tries = 0

while guess != secret_number:
    guess = int(input("Guess a number: "))
    tries = tries + 1

    if guess < secret_number:
        print("Too low!")

    elif guess > secret_number:
        print("Too high!")

    else:
        print("You got it!")
        print("Number of tries: ", tries)

    userInput = input("Enter 'R' to restart or 'X' to exit").capitalize()

    if userInput == "R":
        #code to restart the game goes here

    elif gameReply == "X":
        #code to exit the game goes here

Answer 1

1. Your indentation was wrong.
2. You can try to use a smaller random.randrange() while you are testing your program.
3. After the game finishes, what do you want to do if user inputs, say, hello ? In the following program, you basically continue if it is not x or X and play again.

Here is the fixed version:

import random
import sys

while True: # outer game loop

    print('Welcome to the game.')

    secret_number = random.randrange(1, 5)

    guess = 0
    tries = 0

    while guess != secret_number:
        guess = int(input("Guess a number: "))
        tries = tries + 1

        if guess < secret_number:
            print("Too low!")

        elif guess > secret_number:
            print("Too high!")

        else:
            print("You got it!")
            print("Number of tries: ", tries)

    userInput = input("Enter 'R' to restart or 'X' to exit").capitalize()

    if userInput == "X":
        print('Goodbye.')
        sys.exit(-1) # exits the program

Answer 2

To restart the game: Well, you can declare a function that initializes the game, and then you call it if you want to restart.

To exit:

sys.exit()

I have a similar game already coded: you can have a look at it HERE . It was my first python code

Answer 3

For restart, you can just set tries to zero and continue since you are in a loop.

if userInput == "R":
    tries = 0
    continue

For exit, sys.exit() is a winner.

elif gameReply == "X":
    sys.exit()

Answer 4

You can use sys.exit() to stop the script and wrap your code into a method so you can call it again when the user wants to restart. Also, use raw_input rather than input as input is expecting Python code.

For example:

import random
import sys

def my_game():
    secret_number = random.randrange(1, 101)

    guess = 0
    tries = 0

    while guess != secret_number:
        guess = int(input("Guess a number: "))
        tries = tries + 1

        if guess < secret_number:
            print("Too low!")

        elif guess > secret_number:
            print("Too high!")

        else:
            print("You got it!")
            print("Number of tries: ", tries)

        userInput = raw_input("Enter 'R' to restart or 'X' to exit").capitalize()

        if userInput == "R":
            my_game()

        elif userInput == "X":
            sys.exit()

my_game()