exercise 19 函数和变量

最新推荐文章于 2022-02-13 00:19:35 发布

cecelearnpython

最新推荐文章于 2022-02-13 00:19:35 发布

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本文链接：https://blog.youkuaiyun.com/cecelearnpython/article/details/54232051

本文通过一个具体的Python函数示例，详细介绍了如何直接传递数值、使用脚本变量、进行数学运算以及结合变量和数学运算来调用函数。展示了不同方式下函数参数的灵活使用。

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##########################################ex19
def cheese_and_crackers(cheese_count, boxes_of_crackers):
    print "You have %d cheeses!" % cheese_count
    print "You have %d boxes of crackers!" % boxes_of_crackers
    print "Man that's enough for a party!"
    print "Get a blanket.\n"

print "We can just give the function numbers directly:"
cheese_and_crackers(20, 30)

print "OR, we can use variables from our script:"
amount_of_cheese = 10
amount_of_crackers = 50

cheese_and_crackers(amount_of_cheese, amount_of_crackers) #amount_of_cheese是脚本中的变量/cheese_count是函数中的变量？？？？

print "We can even do math inside too:"
cheese_and_crackers(10 + 20, 5 + 6)

print "And we can combine the two, variables and math:"
cheese_and_crackers(amount_of_cheese + 100, amount_of_crackers + 1000)

运行结果：
$ python ex19.py
We can just give the function numbers directly:
You have 20 cheeses!
You have 30 boxes of crackers!
Man that's enough for a party!
Get a blanket.

OR, we can use variables from our script:
You have 10 cheeses!
You have 50 boxes of crackers!
Man that's enough for a party!
Get a blanket.

We can even do math inside too:
You have 30 cheeses!
You have 11 boxes of crackers!
Man that's enough for a party!
Get a blanket.

And we can combine the two, variables and math:
You have 110 cheeses!
You have 1050 boxes of crackers!
Man that's enough for a party!
Get a blanket.

1.函数里面的变量和脚本中的变量是没有关联的。