《笨办法学python》源码 Ex04.py

#-------------------------------------------------------------------------------
# Name:        ex_04.py
# Purpose:     浮点数运算,除法.
#
# Author:      huanghuan
#
# Created:     14-08-2013
# Copyright:   (c) huanghuan 2013
# Licence:     <your licence>
#-------------------------------------------------------------------------------


cars = 100
space_in_a_car = 4.0
drivers = 30
passengers = 90

cars_not_driven = cars - drivers
cars_driven = drivers
carpool_capacity = cars_driven * space_in_a_car
average_passengers_per_car = passengers / cars_driven


#----print out ....

print "there are", cars, "cars available."
print "there are only", drivers, "drivers available."
print "there will be", cars_not_driven, "empty cars today."

print "we can transport", carpool_capacity, "people today."
print "we have", passengers, "to carpool today."
print "we need to put about", average_passengers_per_car, "in each car."