Function create_package_center

Day66-75/code/coroutine02.py:24–32

(consumer, max_packages)

def create_package_center(consumer, max_packages):
    num = 0
    while num <= max_packages:
        print('快递中心准备派送%d号包裹' % num)
        consumer.send('包裹-%d' % num)
        num += 1
        if num % 10 == 0:
            sleep(5)
    consumer.send(None)


def main():