有趣python代码

生成彩虹：在终端上显示彩虹。

python
import colorama
import time

colorama.init()

colors = [
    colorama.Fore.RED,
    colorama.Fore.YELLOW,
    colorama.Fore.GREEN,
    colorama.Fore.BLUE,
    colorama.Fore.MAGENTA,
    colorama.Fore.CYAN,
    colorama.Fore.WHITE
]

text = "Hello, Rainbow!"

for color in colors:
    print(color + text)
    time.sleep(0.5)

colorama.deinit()

文字动画：让文字在终端上移动。

python
import sys
import time

def print_loading_bar():
    for i in range(20):
        sys.stdout.write('\r')
        sys.stdout.write("[%-20s] %d%%" % ('=' * i, 5 * i))
        sys.stdout.flush()
        time.sleep(0.1)

print_loading_bar()
print("\nLoading complete!")

文本进度条：在终端上显示进度条。

python
import sys
import time

def print_progress_bar(iteration, total, length=50, fill='█'):
    percent = ("{0:.1f}").format(100 * (iteration / float(total)))
    filled_length = int(length * iteration // total)
    bar = fill * filled_length + '-' * (length - filled_length)
    sys.stdout.write('\r |%s| %s%% Complete' % (bar, percent))
    sys.stdout.flush()

# 示例用法
total = 100
for i in range(total + 1):
    time.sleep(0.1)
    print_progress_bar(i, total)

谜题解决器：使用 Python 解决数独谜题。

python
def print_board(board):
    for i in range(9):
        for j in range(9):
            print(board[i][j], end=" ")
        print()

def is_safe(board, row, col, num):
    for x in range(9):
        if board[row][x] == num or board[x][col] == num or board[row - row % 3 + x // 3][col - col % 3 + x % 3] == num:
            return False
    return True

def solve_sudoku(board):
    for i in range(9):
        for j in range(9):
            if board[i][j] == 0:
                for num in range(1, 10):
                    if is_safe(board, i, j, num):
                        board[i][j] = num
                        if solve_sudoku(board):
                            return True
                        board[i][j] = 0
                return False
    return True

# 使用一个未解决的数独谜题作为输入
sudoku_board = [
    [5, 3, 0, 0, 7, 0, 0, 0, 0],
    [6, 0, 0, 1, 9, 5, 0, 0, 0],
    [0, 9, 8, 0, 0, 0, 0, 6, 0],
    [8, 0, 0, 0, 6, 0, 0, 0, 3],
    [4, 0, 0, 8, 0, 3, 0, 0, 1],
    [7, 0, 0, 0, 2, 0, 0, 0, 6],
    [0, 6, 0, 0, 0, 0, 2, 8, 0],
    [0, 0, 0, 4, 1, 9, 0, 0, 5],
    [0, 0, 0, 0, 8, 0, 0, 7, 9]
]

if solve_sudoku(sudoku_board):
    print_board(sudoku_board)
else:
    print("No solution exists.")

这些代码片段只是冰山一角，Python 的强大之处在于它的灵活性，你可以用它做很多有趣的事情。

ASCII 艺术生成器：将文本转换成 ASCII 艺术。

python
from pyfiglet import Figlet

def generate_ascii_art(text, font="standard"):
    f = Figlet(font=font)
    ascii_art = f.renderText(text)
    print(ascii_art)

generate_ascii_art("Hello, ASCII Art!")

你需要安装 pyfiglet 库，可以使用

bash
pip install pyfiglet

猜数字游戏：简单的猜数字游戏。

python
import random

def guess_the_number():
    number_to_guess = random.randint(1, 100)
    attempts = 0

    while True:
        guess = int(input("Guess the number (between 1 and 100): "))
        attempts += 1

        if guess == number_to_guess:
            print(f"Congratulations! You guessed the number in {attempts} attempts.")
            break
        elif guess < number_to_guess:
            print("Too low. Try again.")
        else:
            print("Too high. Try again.")

guess_the_number()

网络爬虫：使用 BeautifulSoup 库从网页中抓取信息。

python
import requests
from bs4 import BeautifulSoup

def get_wikipedia_intro(query):
    url = f"https://en.wikipedia.org/wiki/{query}"
    response = requests.get(url)
    soup = BeautifulSoup(response.text, "html.parser")

    intro = soup.find("p").get_text()
    print(intro)

get_wikipedia_intro("Python_(programming_language)")

确保你已经安装了 beautifulsoup4 和 requests：

bash
pip install beautifulsoup4 requests