NP25 食堂点餐

思路：

创建列表，for循环，按照要求对应输出；同时设置计数器累加；

代码如下：

order_list = ['rice', 'beef', 'chips', 'pizza', 'pizza', 'yogurt', 'tomato', 'rice', 'beef']
count = 0
for i in order_list:
    if i == 'pizza':
        count += 10
        print("pizza is 10 dollars")
    elif i == 'rice':
        count += 2
        print('rice is 2 dollars')
    elif i == 'yogurt':
        count += 5
        print('yogurt is 5 dollars')
    else:
        count += 8
        print('{} is 8 dollars'.format(i))
print(count)