gistfile1.py

#!/usr/bin python
# coding: utf-8

'''
Simple Script for iPhone Price.
'''

__author__ = 'Kollin'

class PhoneCost(object):

    def __init__(self, h_price, c_price, u_price, cycle, b_price):
        '''
        h_price: Hong Kong iPhone Price
        c_price: China Unicom iPhone Price
        u_price: cost every month
        cycle: such as 12, 24, 30
        b_price: China Unicom back price for every month
        '''
        self.h_price = h_price
        self.c_price = c_price
        self.u_price = u_price
        self.cycle = cycle
        self.b_price = b_price

    def cal_h_cost(self):
        return self.h_price  + self.u_price * self.cycle

    def cal_c_cost(self):
        return self.c_price + (self.u_price - self.b_price) * self.cycle

    def compare(self):
        h_cost = self.cal_h_cost()
        c_cost = self.cal_c_cost()
        print 'Hong Kong: {0}'.format(h_cost)
        print 'China Unicom: {0}'.format(c_cost)
        return "Hong Kong Better" if h_cost < c_cost else 'China Unicom Better'


if __name__ == '__main__':
    print 'When cost 66 every month.'
    pc = PhoneCost(4400, 5499, 66, 30, 46)
    print pc.compare()
    print 
    print 'When cost 96 every month.'
    pc = PhoneCost(4400, 5499, 96, 30, 66)
    print pc.compare()
    print 
    print 'When cost 126 every month.'
    pc = PhoneCost(4400, 5499, 126, 30, 73)
    print pc.compare()