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因为编程是我最喜欢的爱好之一，所以我在 python 中开始了一个小项目。

我正在尝试为日常生活制作营养计算器，请参见下面的代码：

# Name: nutri.py 
# Author: pyn

my_dict = {'chicken':(40, 50, 10),
        'pork':(50, 30, 20)
         }

foods = raw_input("Enter your food: ")

#explode / split the user input

foods_list = foods.split(',')

#returns a list separated by comma

print foods_list

我想做的事：

  1. 获取用户输入并将其存储在变量中
  2. 根据用户输入搜索字典，如果存在键/食物，则返回相关值
  3. 将这些值以不同的营养块相加并返回，例如：您吃了 x 蛋白质、y 碳水化合物和 z 脂肪等。

欢迎任何想法。

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3 回答 3

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my_dict = {'chicken':(40, 50, 10),
        'beef':(50, 30, 20)
         }

foods = raw_input("Enter your food: ")

#explode / split the user input

foods_list = foods.split(',')

#returns a list separated by comma

#print foods_list

nuts = [0, 0, 0]

for food in foods_list :
    if food.strip() in my_dict: 
        i = 0
        for value in  my_dict[food.strip()]:
            nuts[i] += value        
            i += 1  
print nuts  

scripts$ python nutrition.py
Enter your food: chicken, pork, beef
[90, 80, 30]


some improvements ;)
于 2013-02-07T11:10:13.660 回答
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这段代码将完成您尝试做的所有必要的事情：

my_dict = {'chicken':(40, 50, 10),
        'pork':(50, 30, 20)
         }

foods = raw_input("Enter your food: ")

#explode / split the user input

foods_list = foods.split(',')

#returns a list separated by comma

t=[0,0,0]

print foods_list

for i in foods_list:
    if i.strip() in my_dict:
        v=my_dict.get(i.strip())
        t[0]=t[0]+v[0]
        t[1]=t[1]+v[1]
        t[2]=t[2]+v[2]

print t
于 2013-02-07T11:14:31.617 回答
0

这是我的解决方案，它检查食物是否在字典中，如果没有，会说明。

my_dict = {'chicken':(40, 50, 10),
        'pork':(50, 30, 20)
         }

foods = raw_input("Enter your food: ")

foods_list = foods.split(',')

empty_list = []
for food in foods_list:
    if food in my_dict:
        empty_list.append(list(my_dict[food]))
    else:
        print '%s has no nutritional information and will not be included in the calculation' % food

values = [sum(x) for x in zip(*empty_list)]

print 'Total protein = %d, Total Carbs = %d, Total Fat = %d' % (values[0],values[1],values[2])

这输出：

Enter your food: chicken,pork,pizza
pizza has no nutritional information and will not be included in the calculation
Total protein = 90, Total Carbs = 80, Total Fat = 30
于 2013-02-07T11:41:42.483 回答