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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                #### 同步應用 ##### 多個線程有序執行 ~~~ from threading import Thread,Lock from time import sleep class Task1(Thread): def run(self): while True: if lock1.acquire(): print("------Task 1 -----") sleep(0.5) lock2.release() class Task2(Thread): def run(self): while True: if lock2.acquire(): print("------Task 2 -----") sleep(0.5) lock3.release() class Task3(Thread): def run(self): while True: if lock3.acquire(): print("------Task 3 -----") sleep(0.5) lock1.release() #使用Lock創建出的鎖默認沒有“鎖上” lock1 = Lock() #創建另外一把鎖,并且“鎖上” lock2 = Lock() lock2.acquire() #創建另外一把鎖,并且“鎖上” lock3 = Lock() lock3.acquire() t1 = Task1() t2 = Task2() t3 = Task3() t1.start() t2.start() t3.start() ~~~ 運行結果: ~~~ ------Task 1 ----- ------Task 2 ----- ------Task 3 ----- ------Task 1 ----- ------Task 2 ----- ------Task 3 ----- ------Task 1 ----- ------Task 2 ----- ------Task 3 ----- ------Task 1 ----- ------Task 2 ----- ------Task 3 ----- ------Task 1 ----- ------Task 2 ----- ------Task 3 ----- ...省略... ~~~ >[warning] 總結 * 可以使用互斥鎖完成多個任務,有序的進程工作,這就是線程的同步
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