python多进程-重新运行初始化器，或在所有工作进程上运行函数？

import multiprocessing

def worker():
    # 子进程的工作函数
    print("This is a worker process.")

if __name__ == "__main__":
    # 主进程的代码
    print("This is the main process.")

    # 创建子进程
    process = multiprocessing.Process(target=worker)
    process.start()
    process.join()

import multiprocessing

def worker(data):
    # 子进程的工作函数
    print("This is a worker process. Data:", data)

if __name__ == "__main__":
    # 主进程的代码
    print("This is the main process.")

    # 创建进程池
    pool = multiprocessing.Pool()

    # 准备输入数据
    data_list = [1, 2, 3, 4, 5]

    # 在进程池中并行处理任务
    pool.map(worker, data_list)

    # 关闭进程池
    pool.close()
    pool.join()