红绿灯实例，event事件
import time, threading
event = threading.Event()
# 交通灯
def lighter():
count = 0
while True:
if count < 5: # 绿灯
event.set() #设置标志位
print("\033[42;1m 绿灯亮\033[0m")
elif count > 10:
count =0 # 清零重新计数
else: # 红灯
event.clear() # 清空标志位
print("\033[41;1m 红灯亮\033[0m")
time.sleep(1)
count += 1
# 车辆
def car(name):
while True:
if event.is_set(): # 绿灯亮
print("[%s]绿灯行..." % name)
time.sleep(1)
else:
print("[%s]红灯停!!!" % name)
event.wait() # 等待标志位设定
print("\033[34;1m绿灯出发\033[0m")
# 启动交通灯
t_lighter = threading.Thread(target=lighter)
t_lighter.start()
# 放入车辆
t_car1 = threading.Thread(target=car, args=("奥迪车",))
t_car2 = threading.Thread(target=car, args=("大众车",))
t_car1.start()
t_car2.start()
# 备注，\033在pycharm中有效果
