如何在继续之前等待线程完成？

import threading

def my_function():
    # 执行任务

thread = threading.Thread(target=my_function)
thread.start()
thread.join()  # 等待线程完成

public class MyRunnable implements Runnable {
    @Override
    public void run() {
        // 执行任务
    }
}

MyRunnable runnable = new MyRunnable();
Thread thread = new Thread(runnable);
thread.start();
try {
    thread.join();  // 等待线程完成
} catch (InterruptedException e) {
    e.printStackTrace();
}

function myFunction() {
    return new Promise((resolve, reject) => {
        // 执行任务
        resolve();
    });
}

(async () => {
    await myFunction();  // 等待线程完成
})();

public class MyThread
{
    public void Run()
    {
        // 执行任务
    }
}

MyThread thread = new MyThread();
Thread thread = new Thread(thread.Run);
thread.Start();
thread.Join();  // 等待线程完成