装饰器

def performance_monitor(func):
    def wrapper(*args, **kwargs):
        import time
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        print(f"函数 {func.__name__} 执行耗时: {end_time - start_time}秒")
        return result
    return wrapper

@performance_monitor
def backup_database():
    # 模拟数据库备份
    import time
    #下面填需要执行的操作
    time.sleep(2) 
    print("数据库备份完成")

backup_database()

并发编程

# 使用多线程处理复杂任务
from concurrent.futures import ThreadPoolExecutor

def process_server_log(log_file):
    # 处理单个日志文件的复杂逻辑
    pass

def batch_log_processing(log_files):
    with ThreadPoolExecutor(max_workers=10) as executor:
        executor.map(process_server_log, log_files)

网络编程

import socket
import requests

# socket编程
def port_scan(host, port):
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = sock.connect_ex((host, port))
        if result == 0:
            print(f"Port {port} is open")
        sock.close()
    except Exception as e:
        print(f"Error scanning port {port}: {e}")

# 发起HTTP请求监控服务
def check_service_health(url):
    try:
        response = requests.get(url, timeout=5)
        if response.status_code == 200:
            print(f"Service {url} is healthy")
        else:
            print(f"Service {url} returned status code {response.status_code}")
    except requests.RequestException as e:
        print(f"Service {url} is down: {e}")

系统交互与自动化

import os
import subprocess
import shutil

# 文件和目录操作
def backup_directory(source, destination):
    try:
        shutil.copytree(source, destination)
        print(f"Backup of {source} completed successfully")
    except Exception as e:
        print(f"Backup failed: {e}")

# 执行系统命令
def run_system_command(command):
    try:
        result = subprocess.run(command, shell=True, capture_output=True, text=True)
        print("Command output:", result.stdout)
        return result.stdout
    except Exception as e:
        print(f"Command execution failed: {e}")