程式碼實現功能，將資料列表中的資料傳入，使用四個執行緒處理，將結果儲存在Queue中，執行緒執行完後，從Queue中獲取儲存的結果

import threading
from queue import Queue


def job(l, q):
    for i in range(len(l)):
        l[i] = l[i] ** 2
    q.put(l)


def multithreading():
    q = Queue()
    threads = []
    data = [[1, 2, 3], [3, 4, 5], [7, 8, 9], [
 
5, 5, 5]]
    for i in range(4):
        t = threading.Thread(target=job, args=(data[i], q))
        t.start()
        threads.append(t)
    for thread in threads:
        thread.join()
    results = []
    for _ in range(4):
        results.append(q.get())
    print(results)


def main():
    multithreading(
 
)


if __name__ == '__main__':
    main()