# Learn Python The Hard Way学习(19) - 函数和变量

2012-06-21

[python]
def cheese_and_crackers(cheese_count, boxes_of_crackers):
print "You have %d cheeses!" % cheese_count
print "You hava %d boxes of crackers!" % boxes_of_crackers
print "Man that&#39;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)

print "We can even do match 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)

root@he-desktop:~/mystuff# python ex19.py
We can just give the function numbers directly:
You have 20 cheeses!
You hava 30 boxes of crackers!
Man that&#39;s enough for a party!
Get a blanket.

OR, we can use variables from our script:
You have 10 cheeses!
You hava 50 boxes of crackers!
Man that&#39;s enough for a party!
Get a blanket.

We can even do match inside too:
You have 30 cheeses!
You hava 11 boxes of crackers!
Man that&#39;s enough for a party!
Get a blanket.

And we can combine the two,variables and math:
You have 110 cheeses!
You hava 1050 boxes of crackers!
Man that&#39;s enough for a party!
Get a blanket.

root@he-desktop:~/mystuff#

1. 给脚本添加注释。

2. 反过来读一下代码。

3. 自己写一个函数，然后用10种方法调用。