2018-04-27 00:00:22 +08:00
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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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2019-05-03 21:17:36 +08:00
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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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2018-04-27 00:00:22 +08:00
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def package_center(deliver_man, max_per_day):
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2019-05-03 21:17:36 +08:00
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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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2018-04-27 00:00:22 +08:00
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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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