将整数分配给字符串，然后添加它们-解网

问：

我正在尝试为三明治店创建一个菜单作为迷你项目。我已经弄清楚了我需要的大部分内容，但我想为每个菜单项分配一个价格整数，然后将每个数字相加得出最终价格。

 import pyinputplus as pyip


bread = ['White', 'Wheat', 'Sourdough'] #The Menu Options
protein = ['Chicken', 'Turkey', 'Ham', 'Tofu']
cheese = ['Cheddar', 'Swiss', 'Mozzarella']
sauce = ['Mayo', 'Mustard', 'Lettuce', 'Tomato']

OP1 = pyip.inputMenu(bread, prompt = 'What kind of bread? \n') #Asking for Bread
OP2 = pyip.inputMenu(protein, prompt = 'What kind of Protein? \n') #Asking for Protien
def OP3(): #Asking for Cheese and what kind they would like
    cyn = pyip.inputYesNo('Want any cheese? ')
    if cyn == 'yes':
        pyip.inputMenu(cheese, prompt = 'What kind of Cheese? \n')
def OP4(): #Asking for Sauce and what kind they would like
    syn = pyip.inputYesNo('Want any Sauce? ')
    if syn == 'yes':
        pyip.inputMenu(sauce, prompt = 'What kind of Sauce? \n')

OP3() #Calling the Cheese and Sauce Functions
OP4()

OP5 = pyip.inputNum(prompt='How Many Sandwiches would you Like? ') #Asking how many sandwiches they would like.

d = {'White': 3, 'Wheat': 1, 'Sourdough': 4, 'Chicken': 3, 'Turkey': 5, 'Ham': 3, 'Tofu': 9, 'Cheddar': 3, 'Swiss': 2, 'Mozzarella': 4, 'Mayo': 3, 'Mustard': 3, 'Lettuce': 3, 'Tomato': 90} #Dictionary I thought would convert the strings into numbers

print((OP1 + OP2 + OP3 + OP4) * OP5) #Final Price Equation

我尝试制作一个字典，以便将字符串转换为我稍后可以相加的整数，但它给了我一个类型错误“只能将 str（而不是”函数“）连接到 str

有谁知道根据用户输入将整数分配给字符串的好方法，以便以后可以添加它？

python 字符串字典整数

def OP3(): #Asking for Cheese and what kind they would like
    cyn = pyip.inputYesNo('Want any cheese? ')
    if cyn == 'yes':
        pyip.inputMenu(cheese, prompt = 'What kind of Cheese? \n')
def OP4(): #Asking for Sauce and what kind they would like
    syn = pyip.inputYesNo('Want any Sauce? ')
    if syn == 'yes':
        pyip.inputMenu(sauce, prompt = 'What kind of Sauce? \n')

OP3() #Calling the Cheese and Sauce Functions
OP4()

它应该是

cyn = pyip.inputYesNo('Want any cheese? ')
if cyn == 'yes':
    OP3 = pyip.inputMenu(cheese, prompt = 'What kind of Cheese? \n')

syn = pyip.inputYesNo('Want any Sauce? ')
if syn == 'yes':
    OP4 = pyip.inputMenu(sauce, prompt = 'What kind of Sauce? \n')

最后，您需要 dict 中的价格，因此您需要使用从 Inputs 中获取的键访问 dict 值，然后打印出来。

price_option_1 = d[OP1]
price_option_2 = d[OP2]
if cyn == 'yes': 
    price_option_3 = d[OP3] 
else: 
    price_option_3 = 0
if syn == 'yes': 
    price_option_4 = d[OP4] 
else: 
    price_option_4 = 0
quantity = OP5
total_price = (price_option_1 + price_option_2 + price_option_3 + price_option_4) * quantity

print(total_price)

说清楚，我啰嗦了，但您可以在变量命名中使用或任何内容。p_OP1p_OP2

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将整数分配给字符串，然后添加它们

Assigning Integers to strings and then adding them

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