importthreading# 创建互斥锁lock=threading.Lock()# 共享资源shared_resource=0# 多线程函数defworker():globalshared_resource# 获取锁lock.acquire()try:# 进行共享资源的操作shared_resource+=1finally:# 释放锁lock.release()# 创建多个线程并启动
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1 import threading,time 2 3 class MyThread(threading.Thread): 4 def __init__(self, num): 5 threading.Thread.__init__(self) 6 self.num = num 7 8 def run(self): # 定义每个线程要运行的函数 9 print("running on number:%s" % self.num) 10 time.sleep(3) 11 12 if __name__ =...
#主进程代码运行完毕,守护进程就会结束 from multiprocessing import Process from threading import Thread import time def foo(): print(123) time.sleep(1) print("end123") def bar(): print(456) time.sleep(3) print("end456") p1=Process(target=foo) p2=Process(target=bar) p1.daemon=True p1...
The mechanism used by the CPython interpreter to assure that only one thread executes Python bytecode at a time. This simplifies the CPython implementation by making the object model (including critical built-in types such as dict) implicitly safe against concurrent access. Locking the entire inte...
num= 1#车辆编号vehicle = threading.Thread(target=action, args=(num,))#新建车辆vehicle.start()#启动车辆vehicle.join()#检查到站车辆end=time.time()print("Duration time: %0.3f"%(end-start)) 运行结果: C:\Python37\python.exe Y:/Project-python/threading/test.py ...
The mechanism used by the CPython interpreter to assure that only one thread executes Python bytecode at a time. This simplifies the CPython implementation by making the object model (including critical built-in types such as dict) implicitly safe against concurrent access. Locking the entire inte...
t.start()print'main_thread end!' setDeamon(True) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 main_thread end!Process finishedwithexit code0可以看出,主线程执行完毕后,后台线程不管是成功与否,主线程均停止 运行结果 验证了serDeamon(True)后台线程,主线程执行过程中,后台线程也在进行,主线程执行完...
自己有个爬虫项目,使用 PySide6 只做 GUI,包装 Selenium,其中在 GUI 上会打印爬虫进度,见下图。但当 Selenium 出现错误我重新点击开始的时候,发现 PySid...
single_step() d = SingleSteppingDebugger() # Infinite loop + nop + ret code = x86.assemble("label :begin; jmp :begin; nop; ret") func = windows.native_exec.create_function(code, [PVOID]) print("Code addr = 0x{0:x}".format(func.code_addr)) # Create a thread that will ...