restaurant.py

'''restaurant.py
Designing some problems for
Intro to Computer Science  Lesson 1 ~ Lesson 3 Review Question Code
Course Source: https://www.udacity.com/course/viewer#!/c-cs101
'''

menu = [ [ "大麥克" , "牛肉, 酸黃瓜, 起士" , 109 ],
         [ "麥香魚" , "鱈魚, 起士, 美乃滋" , 99 ],
         [ "麥香雞" , "雞肉, 生菜, 美乃滋" , 89 ] ]

sales = ["麥香魚", "大麥克", "大麥克", "麥香魚", "麥香魚",
         "大麥克", "大麥克", "麥香魚", "麥香雞", "大麥克",
         "麥香雞", "麥香雞", "大麥克" ]

def print_burger( menu ):
    i = 0
    while i < 3 :
        print ( menu[i][ 0 ] )
        i = i + 1

def find_cheese_burger( menu ):
    for  meal in menu :
        if meal[1].find( "起士" )  is not -1:
            print ( meal[0] )

def today_income( sales ):
    income = 0
    while ( len(sales) > 0 ):
        burger = sales.pop()
        if burger == "大麥克":
            income = income + 109
        if burger == "麥香魚":
                income = income + 99
        if burger == "麥香雞":
            income = income + 89
    print( income )

print('list all burgers')
print_burger( menu )
print('\n find cheese burger:')
find_cheese_burger( menu )
print("\n sum of today's income")
today_income( sales )