Thread对象的其它属性或方法
介绍:
Thread实例对象的方法# isAlive():返回线程是否活动的# getName():返回线程名# setNmae():设置线程名threading模块提供的一些方法:# threading.currentThread(): 返回当前的线程变量# threading.enumerate(): 返回一个包含正在运行的线程的list。正在运行指线程启动后、结束前,不包括启动前和终止后的线程。# threading.activeCount(): 返回正在运行的线程数量,与len(threading.enumerate())有相同结果
验证
from threading import Threadimport threadingfrom multiprocessing import Processimport osimport timedef work():time.sleep(3)print(threading.current_thread().getName())if __name__ == '__main__':# 在主进程下开启线程t = Thread(target=work)t.start()print(threading.current_thread().getName())print(threading.current_thread()) # 主线程print(threading.enumerate()) # 连同主线程在内有两个运行的线程print(threading.active_count())print('主线程/主进程')
执行结果
MainThread<_MainThread(MainThread, started 140037784917824)>[<_MainThread(MainThread, started 140037784917824)>, <Thread(Thread-1, started 140037751482112)>]2主线程/主进程Thread-1
主线程等待子线程结束
import timedef sayhi(name):time.sleep(2)print('%s say hello' % name)if __name__ == '__main__':t = Thread(target=sayhi, args=('mike', ))t.start()t.join()print('主线程')print(t.is_alive())
执行结果
mike say hello主线程False