Master Python’s Number Guessing Game: Step-by-Step Code Walkthrough

Preface

A follower asked how to implement a "guess the number" game in Python. The author shares two community‑provided solutions and discusses their logic.

Solution Process

Solution by 冯诚

The approach uses a while loop, the random module to generate a target number, and input() to receive user guesses.

import random
n = random.randint(1, 100)
while True:
    a = int(input('请输入数字：'))
    if a > n:
        print('猜大了')
    elif a < n:
        print('猜小了')
    else:
        print('恭喜你猜对了')
        break

This method is straightforward and works well for most cases.

Solution by 德善堂小儿推拿-瑜亮老师

This version adds range tracking to give the player feedback about the remaining interval.

# -*-coding:utf8;-*-
#qpy:console
import random
key = random.randint(1, 100)
btm = 1
top = 100
count = 1
while True:
    try:
        user = int(input("请输入数字："))
    except:
        continue
    if user > key:
        print('猜大了')
        print(f'数字区间为{btm}-{user}')
        top = user
    elif user < key:
        print('猜小了')
        print(f'数字区间为{user}-{top}')
        btm = user
    else:
        print(f'恭喜你共使用{count}次机会，猜对正确数字{key}')
        break
    count += 1

The code informs the player of the current possible range after each guess.

Later testing revealed a minor bug where the displayed interval could be incorrect.

import random
key = random.randint(1, 100)
btm = 1
top = 100
count = 1
while True:
    try:
        user = int(input("请输入数字："))
    except:
        continue
    if user > key:
        if top >= user:
            top = user
        print(f'错误！正确数字比{user}小，答案就在区间{btm}-{top}之中')
    elif user < key:
        if btm <= user:
            btm = user
        print(f'错误！正确数字比{user}大，答案在区间{btm}-{top}之中')
    else:
        print(f'恭喜你共使用{count}次机会，猜对正确数字{key}')
        if count > 7:
            print('请继续努力！您还需要多练习猜数。')
        elif count == 1:
            print('啥也甭说了，快去买彩票！')
        else:
            print('你真是个机灵的小可爱！')
        break
    count += 1

The updated code fixes the interval display and adds playful messages based on the number of attempts.

Conclusion

The article demonstrates how community collaboration can refine a simple Python guessing game, improving interactivity, input handling, and user feedback while reinforcing fundamental programming concepts.