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jackfrued

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GitHub Repository: jackfrued/Python-100-Days
 Path: blob/master/Day01-15/code/Day13/coroutine1.py
Views: 729
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"""

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使用协程 - 模拟快递中心派发快递

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Version: 0.1

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Author: 骆昊

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Date: 2018-03-21

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"""

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from time import sleep

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from random import random

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def build_deliver_man(man_id):

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    total = 0

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    while True:

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        total += 1

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        print('%d号快递员准备接今天的第%d单.' % (man_id, total))

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        pkg = yield

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        print('%d号快递员收到编号为%s的包裹.' % (man_id, pkg))

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        sleep(random() * 3)

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def package_center(deliver_man, max_per_day):

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    num = 1

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    deliver_man.send(None)

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    # next(deliver_man)

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    while num <= max_per_day:

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        package_id = 'PKG-%d' % num

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        deliver_man.send(package_id)

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        num += 1

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        sleep(0.1)

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    deliver_man.close()

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    print('今天的包裹派送完毕!')

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dm = build_deliver_man(1)

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package_center(dm, 10)

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# 两个函数虽然没有调用关系但是创建快递员的函数作为一个协程协助了快递中心函数完成任务

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# 想一想如果有多个快递员的时候应该如何处理

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