python函数

import math
def add(a):
    result=(a.real**2+a.imag**2)**0.5
    return result
def angle(a):
    result=math.atan(a.imag/a.real)
    return result
add(3+4j)
print(add(3+4j))
print(angle(3+4j))

 

def abc(a,b,c):
    delt=b**2-4*a*c
    if delt>=0:
        x1=(-b+delt**0.5)/(2*a)
        x2 = (-b - delt ** 0.5) / (2 * a)
        print(x1)
        print(x2)
    else:
        print("无解")


abc(2,-5,-10)

 

cities_dict = {
    '海口': 19.97,
    '广州': 23.11,
    '深圳': 22.54,
    '福州': 26.08,
    '杭州': 30.27,
    '上海': 31.23,
    '南京': 32.04,
    '武汉': 30.58,
    '长沙': 28.21,
    '南昌': 28.68,
    '合肥': 31.86,
    '郑州': 34.76,
    '济南': 36.67,
    '北京': 39.90,
    '天津': 39.13,
    '石家庄': 38.03,
    '沈阳': 41.80,
    '长春': 43.88,
    '哈尔滨': 45.75,
    '呼和浩特': 40.82,
}
user_input = input("请输入你想要比较的城市（用空格分隔）：")
selected_cities = user_input.split()
selected_cities_with_lats = []
for city in selected_cities:
    if city in cities_dict:
        selected_cities_with_lats.append((city, cities_dict[city]))
    else:
        print(f"警告：城市 '{city}' 不在字典中。")
sorted_cities = sorted(selected_cities_with_lats, key=lambda x: x[1])
for city, latitude in sorted_cities:
    print(f"{city}: {latitude}")

 

爬虫

import requests
from bs4 import BeautifulSoup

for page in range(1, 3):
    url = f'https://search.bilibili.com/all?keyword=%E5%8A%A8%E7%94%BB%E7%89%87&from_source=webtop_search&spm_id_from=333.1073&search_source=5&page={page}'
    headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36 Edg/125.0.0.0'}
    response = requests.get(url, headers=headers)

    soup = BeautifulSoup(response.text, 'html.parser')
    video_cards = soup.find_all('div', class_='bili-video-card')

    for card in video_cards:
        video_title = card.find('h3', class_='bili-video-card__info--tit').get_text()
        video_duration = card.find('span', class_='bili-video-card__stats__duration').get_text()
        video_author = card.find('span', class_='bili-video-card__info--author').get_text()

        print("视频标题:", video_title)
        print("视频时长:", video_duration)
        print("作者:", video_author)

 两个表的内容按行绑定

import pandas as pd

df1 = pd.read_csv('工作簿1(1).csv')

df2 = pd.read_csv('工作簿2.csv')

merged_df = pd.merge(df1, df2, on='职称')

print(merged_df[['姓名', '工资']])

工作簿1(1).xlsx

 

工作簿2.xlsx

 

 实现扫描文件夹中的.TXT文件，为每一个不同的学生建一个文件夹，把同一学号和姓名的文件移到对应文件夹中

import os
import shutil
score_folder_path = "E:\成绩1"

if not os.path.exists(score_folder_path):
    print(f"文件夹 {score_folder_path} 不存在！")
    exit(1)

for filename in os.listdir(score_folder_path):
    if filename.endswith('.txt'):  
        base, ext = os.path.splitext(filename)  
        parts = base.split(' ')  
        if len(parts) == 2 and len(parts[0]) == 8:  
            student_id = parts[0]
            student_name = parts[1]
            folder_name = student_name
            target_folder_path = os.path.join(score_folder_path, folder_name)
            if not os.path.exists(target_folder_path):
                os.makedirs(target_folder_path)
            source_file_path = os.path.join(score_folder_path, filename)
            target_file_path = os.path.join(target_folder_path, filename)
            shutil.move(source_file_path, target_file_path)

print("文件已按姓名或学号分类到各自的文件夹中。")