python练手小程序代码示例及介绍

以下是几个Python练手小程序代码示例：

猜数字游戏

import random

secret_number = random.randint(1, 100)
print("猜数字游戏开始！")

while True:
    guess = int(input("请输入一个数字："))
    if guess == secret_number:
        print("猜对了！")
        break
    elif guess < secret_number:
        print("猜小了，再试试")
    else:
        print("猜大了，再试试")

石头、剪刀、布游戏

import random

print("石头、剪刀、布游戏开始！")
print("请出拳：（石头：1，剪刀：2，布：3）")

player = int(input("玩家出拳："))
computer = random.randint(1, 3)

if player == computer:
    print("平局")
elif (player == 1 and computer == 2) or (player == 2 and computer == 3) or (player == 3 and computer == 1):
    print("玩家获胜！")
else:
    print("电脑获胜！")

斐波那契数列

def fibonacci(n):
    if n <= 0:
        return []
    elif n == 1:
        return [1]
    elif n == 2:
        return [1, 1]
    else:
        fib = [1, 1]
        for i in range(2, n):
            fib.append(fib[i-1] + fib[i-2])
        return fib

n = int(input("请输入要生成斐波那契数列的个数："))
print(fibonacci(n))

计算器

def add(x, y):
    return x + y

def subtract(x, y):
    return x - y

def multiply(x, y):
    return x * y

def divide(x, y):
    return x / y

print("计算器程序开始！")
print("请选择要进行的运算：")
print("1. 加法")
print("2. 减法")
print("3. 乘法")
print("4. 除法")

choice = input("请选择运算（1/2/3/4）：")

num1 = float(input("请输入第一个数字："))
num2 = float(input("请输入第二个数字："))

if choice == '1':
    print(num1, "+", num2, "=", add(num1, num2))

elif choice == '2':
    print(num1, "-", num2, "=", subtract(num1, num2))

elif choice == '3':
    print(num1, "*", num2, "=", multiply(num1, num2))

elif choice == '4':
    print(num1, "/", num2, "=", divide(num1, num2))

else:
    print("输入有误，请重新运行程序")

这些小程序可以帮助你练习Python的基础语法和流程控制语句，同时提高你的编程思维和解决问题的能力。