~~~ import threading g_number = 0 # 創建一把全局互斥鎖 g_lock = threading.Lock() def w1(): global g_number for i in range(1000000): # 嘗試獲取并且加鎖　如果沒有被鎖定　就可以被我鎖定；　 # 如果已經被鎖定　阻塞等待　直到成功獲取并且鎖定　 g_lock.acquire() g_number += 1 # 釋放鎖資源　解鎖　　未鎖定　－－－－> 未鎖定狀態 g_lock.release() def w2(): global g_number for i in range(1000000): g_lock.acquire() g_number += 1 g_lock.release() if __name__ == '__main__': t1 = threading.Thread(target=w1) t2 = threading.Thread(target=w2) t1.start() t2.start() t1.join() t2.join() print("g_number=", g_number) ~~~