python19 函数和变量

直接上代码ex19.py

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 = 10amount_of_crackers = 50cheese_and_crackers(amount_of_cheese, amount_of_crackers)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)

学习要点：

函数的参数值可以通过不同的方式赋值