Thread对象的其他属性或方法

Thread实例对象的方法  # isAlive(): 返回线程是否活动的。  # getName(): 返回线程名。  # setName(): 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())有相同的结果。

例子： 查看线程名字

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,) # 其中current_thread()就是拿到t1（也就是拿到t1这对象）    t1.start()    print(t1.getName())    print("主线程名字",current_thread().getName())

Thread-1 is running      # 子线程名字默认是Thread名字开头Thread-1主线程名字 MainThread   # 主线程名字默认是MainThread

 

2. 改线程名字

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    # t1.setName("son线程")    print(t1.getName())    print("主线程名字",current_thread().getName())

子线程 is runningson线程主线程名字 MainThreadson线程 is done

接下来该线程名字

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    t1.setName("son线程")  # 修改线程名字    print(t1.getName())    print("主线程名字",current_thread().getName()

子线程 is runningson线程主线程名字 MainThreadson线程 is done

修改主线程名字

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    t1.setName("son线程")    print(t1.getName())    current_thread().setName("主线程")    print("主线程名字",current_thread().getName())

子线程 is runningson线程主线程名字 主线程  # 名字修改成功son线程 is done

查看存活

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    # t1.setName("son线程")    # print(t1.getName())    # current_thread().setName("主线程")    print(t1.isAlive())    print("主线程名字",current_thread().getName())

子线程 is runningTrue主线程名字 MainThread子线程 is done

等待

from threading import Thread, current_threadimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    t1.join()    # t1.setName("son线程")    # print(t1.getName())    # current_thread().setName("主线程")    print(t1.isAlive())    print("主线程名字",current_thread().getName())

子线程 is running子线程 is doneFalse主线程名字 MainThread

 

查看线程总数 activeCount

from threading import Thread, current_thread,activeCountimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    # t1.setName("son线程")    # print(t1.getName())    # current_thread().setName("主线程")    # print(t1.isAlive())    # print("主线程名字",current_thread().getName())    print(activeCount())

子线程 is running2子线程 is done

 

查看当前线程对象 enumerate

from threading import Thread, current_thread,activeCount,enumerateimport timedef task():    print("%s is running" % current_thread().getName())    time.sleep(2)    print("%s is done" % current_thread().getName())if __name__ == "__main__":    t1 = Thread(target=task,name="子线程") # 其中current_thread()就是拿到t1    t1.start()    print(enumerate())

子线程 is running[
      
       , <_MainThread(MainThread, started 6932)>]子线程 is done