ex21(函数可以返回东西).py

#coding:utf-8

#函数可以返回东西

from sys import argv

def add(a,b):
	print "ADDING %d + %d"%(a,b)
	return a+b

def subtract(a,b):
	print "SUBTRACTING %d - %d"%(a,b)
	return a-b
def multiply(a,b):
	print "MULTIPLYING %d * %d"%(a,b)
	return a*b

def divide(a,b):
	print "DIVIDING %d / %d" %(a,b)
	return a/b


print "Let's do some math with just functions!"

age = add(30,5)
height = subtract(78,4)
weight = multiply(90,2)
iq = divide(100,2)

print "Age:%d,Height:%d,Weight:%d,IQ:%d"%(age,height,weight,iq)
#A puzzle for extra credit, type it in anyway.

print "Here is a puzzle."

what = add(age,subtract(height,multiply(weight,divide(iq,2))))

print "That becomes:",what,"Can you do it by hand?"