Python如何获取多线程返回结果

class MyThread(threading.Thread):
    def __init__(self, func, args = ()):
        super(MyThread, self).__init__()
        self.func = func
        self.args = args
    
    def run(self):
        self.result = self.func(*self.args)
    def get_result(self):
        try:
            return self.result
        except Exception:
            return None

import threading
class MyThread(threading.Thread):
    def __init__(self, func, args = ()):
        super(MyThread, self).__init__()
        self.func = func
        self.args = args
    
    def run(self):
        self.result = self.func(*self.args)
    def get_result(self):
        try:
            return self.result
        except Exception:
            return None
def add(num):
    result = num + 5
    return result
if __name__ == '__main__':
    data = []
    threads = []
    nums = [1, 2, 3]
    for num in nums:
        t = MyThread(add, args = (num, ))
        threads.append(t)
        t.start()
    for t in threads:
        t.join()
        data.append(t.get_result())
    print(data)

from threading import Thread
def func():
    for i in range(100):
        print('func',i)
if __name__ == '__main__':
    t=Thread(target=func)
    t.start()
    for i in range(100):
        print('main',i)

from concurrent.futures import ThreadPoolExecutor
def func(name):
    for i in range(20):
        print(name,i)
if __name__ == '__main__':
    #创建线程池
    with ThreadPoolExecutor(10) as t:
        for i in range(10):
            t.submit(func,name=f'线程{i}')
    print('over')#等待线程全部执行完毕，才会执行该行代码