如何同时运行这两个python例程？

import threading

def example1():
    # 第一个例程的代码

def example2():
    # 第二个例程的代码

if __name__ == "__main__":
    thread1 = threading.Thread(target=example1)
    thread2 = threading.Thread(target=example2)
    thread1.start()
    thread2.start()
    thread1.join()
    thread2.join()

import multiprocessing

def example1():
    # 第一个例程的代码

def example2():
    # 第二个例程的代码

if __name__ == "__main__":
    process1 = multiprocessing.Process(target=example1)
    process2 = multiprocessing.Process(target=example2)
    process1.start()
    process2.start()
    process1.join()
    process2.join()