~~~ import threading g_number = 0 # 创建一把全局互斥锁 g_lock = threading.Lock() def w1(): global g_number for i in range(1000000): # 尝试获取并且加锁　如果没有被锁定　就可以被我锁定；　 # 如果已经被锁定　阻塞等待　直到成功获取并且锁定　 g_lock.acquire() g_number += 1 # 释放锁资源　解锁　　未锁定　－－－－> 未锁定状态 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) ~~~