0121 threading库 多线程练习
import threadingimport time#线程实现def run(n): print("task",n) time.sleep(1) print("3s") time.sleep(1) print("2s") time.sleep(1) print("1s") time.sleep(1) print("0s") time.sleep(1)def run(n): for i in range(1,101): print(n,"跑了",i,"米")if __name__ == '__main__': t1 = threading.Thread(target=run,args=("刘奕铭",)) t2 = threading.Thread(target=run, args=("付强",)) t3 = threading.Thread(target=run, args=("孙鑫",)) t1.start() t2.start() t3.start()#自定义线程class MyThread(threading.Thread): def __init__(self,n): super().__init__() self.n = n def run(self): for i in range(1,101): print(self.n,"跑了",i,"米")if __name__ == "__main__": t1 = MyThread("付强") t2 = MyThread("孙鑫") t3 = MyThread("刘奕铭") t1.start() t2.start() t3.start()#守护线程def run(n): print("task",n) time.sleep(1) print("3s") time.sleep(1) print("2s") time.sleep(1) print("1s") time.sleep(1) print("0s") time.sleep(1)def run(n): for i in range(1,101): print(n,"跑了",i,"米")if __name__ == '__main__': t1 = threading.Thread(target=run,args=("刘奕铭",)) t2 = threading.Thread(target=run, args=("付强",)) t3 = threading.Thread(target=run, args=("孙鑫",)) t1.setDaemon(True) t2.setDaemon(True) t3.setDaemon(True) t1.start() t2.start() t3.start() t1.join() t2.join() t3.join() print("end")#多线程piao = 100def worker(n): global piao while piao>0: lock.acquire() piao -= 1 lock.release() print(n,"买了一张票，剩余：",piao)if __name__ == "__main__": lock = threading.Lock() t1 = threading.Thread(target=worker,args=("worker1",)) t2 = threading.Thread(target=worker,args=("worker2",)) t2.start() t1.start() t1.join() t2.join()from threading import Thread,Lockimport os,timedef work(): global n lock.acquire() temp=n time.sleep(0.1) n=temp-1 lock.release()if __name__ == '__main__': lock=Lock() n=100 l=[] for i in range(100): p=Thread(target=work) l.append(p) p.start() for p in l: p.join()# 利用Event类模拟红绿灯import threadingimport timeevent = threading.Event()def lighter(): count = 0 event.set() # 初始值为绿灯 while True: if 5 < count <= 10: event.clear() # 红灯，清除标志位 print("\33[41;1mred light is on...\033[0m") elif count > 10: event.set() # 绿灯，设置标志位 count = 0 else: print("\33[42;1mgreen light is on...\033[0m") time.sleep(1) count = 1def car(name): while True: if event.is_set(): # 判断是否设置了标志位 print("[%s] running..." % name) time.sleep(1) else: print("[%s] sees red light,waiting..." % name) event.wait() print("[%s] green light is on,start going..." % name)light = threading.Thread(target=lighter, )light.start()car = threading.Thread(target=car, args=("MINI",))car.start() 赞 (0)