習(xí)題 19 函數(shù)和變量
# ex19.rb
def cheese_and_crackers(cheese_count, boxes_of_crackers)
puts "You have #{cheese_count} cheeses!"
puts "You have #{boxes_of_crackers} boxes of crackers!"
puts "Man that's enough for a party!"
puts "Get a blanket.\n"
end
puts "We can just give the function numbers directly!"
cheese_and_crackers(20, 30)
puts "OR, we can use variable from our script:"
amount_of_cheese = 10
amount_of_crackers = 50
cheese_and_crackers(amount_of_cheese, amount_of_crackers)
puts "We can even do math inside too:"
cheese_and_crackers(10 + 20, 5 + 6)
puts "And we can combine the two, variables and math:"
cheese_and_crackers(amount_of_cheese + 100, amount_of_crackers + 1000)
結(jié)果：
$ ruby ex19.rb
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 variable 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.
