关于我的更高或更低数字猜谜游戏的问题

Question

import random
from random import randint
import string

computer = random.randint(0, 50)

player = False

while player == False:
    player = input("Choose number 1-50: ")
    if player == computer:
        print("Well Done!")
    elif player < computer:
        print("Higher")
    else:
        print("Lower")

on the '<' part of the code, I get the message " TypeError: '<' not supported between instances of 'str' and 'int' ". Any ideas on how to fix this?

Answer 1

This is one of the basic concepts of python. When you take a input in python it is stored as a string and not a number. Even though the user inputs a number it will get converted to string.

For example if the random number is 5 and the user inputs 5 too, it'd be comparing 5 to "5" as they both are different datatypes(str and int).

In order for your program to work, change the line from

player = input("Choose number 1-50: ")

To

player = int(input("Choose number 1-50: "))

By putting the input("Choose number 1-50: ") into int() you're converting it to the int datatype.

It would work now.

Answer 2

You have two mistakes in your code.

1. input returns a raw string typed by user at the keyboard and variable player gets this value .ie a str. Thus, TypeError is caused.
2. This is a logical error. Even if you change
   player = input("Choose number 1-50: ")
   with
   player = int(input("Choose number 1-50: "))
   your program will not work as you want it to. After the execution of following line
   player = int(input("Choose number 1-50: ")) ,
   player will always contain an integer value. While Loop can stop early if user types a non-zero number because non-zero int != False . You should add
   player = (player==computer)
   after last else block under while. This line will compare player's int value with computer's guess and overwrite the player var which now will be a boolean. True if it matches computer's value and False otherwise.

Basically we will be using var player for two purposes:

1. To store integer value typed by user at the keyboard.
2. As a boolean flag to check if user's value was equal to computer's guess or not.

After these changes, your code should look like this:

...
while player == False:
    player = int(input("Choose number 1-50: "))
    ... # if else blocks
    player = (player == computer) # check if player == computer or not

Answer 3

Replace

input("Choose number 1-50: ")

With:

int(input("Choose number 1-50: "))