如何使用Python设置和读取config.ini文件

[database]
host = localhost
port = 5432
username = myusername
password = mypassword

[api]
key = myapikey
url = https://api.example.com

import configparser

def create_config():
    config = configparser.ConfigParser()
    
    # 设置database部分
    config['database'] = {
        'host': 'localhost',
        'port': '5432',
        'username': 'myusername',
        'password': 'mypassword'
    }
    
    # 设置api部分
    config['api'] = {
        'key': 'myapikey',
        'url': 'https://api.example.com'
    }
    
    # 写入到文件
    with open('config.ini', 'w') as configfile:
        config.write(configfile)

create_config()

import configparser

def read_config():
    config = configparser.ConfigParser()
    config.read('config.ini')
    
    # 读取数据库配置
    db_host = config.get('database', 'host')
    db_port = config.get('database', 'port')
    db_username = config.get('database', 'username')
    db_password = config.get('database', 'password')
    
    # 读取API配置
    api_key = config.get('api', 'key')
    api_url = config.get('api', 'url')
    
    return db_host, db_port, db_username, db_password, api_key, api_url

db_host, db_port, db_username, db_password, api_key, api_url = read_config()

print("Database Configuration:")
print(f"Host: {db_host}")
print(f"Port: {db_port}")
print(f"Username: {db_username}")
print(f"Password: {db_password}")

print("\nAPI Configuration:")
print(f"Key: {api_key}")
print(f"URL: {api_url}")