fruit.py

来自「Python 实用例程」· Python 代码 · 共 12 行

fruitPrices = {'apples':2.00, 'oranges': 1.50, 'pears': 1.75}

def buyFruit(fruit, numPounds):
    if fruit not in fruitPrices:
        print "Sorry we don't have %s" % (fruit)
    else:
        cost = fruitPrices[fruit] * numPounds
        print "That'll be %f please" % (cost)

buyFruit('apples',2.4)
buyFruit('coconuts',2)