import threading
import 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 = 100
def 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,Lock
import os,time
def 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 threading
import time
event = 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 += 1
def 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()