有没有办法缩短我的python代码？

Question

所以我的代码做了我想让它做的事情，但我相信有一种更简单的方法可以做到这一点，您可以立即获取与输入相关的价格。我只是不知道怎么做，here是原始说明

service1 = 'Oil change'
service2 = 'Tire rotation'
service3 = 'Car wash'

name1 = 'oil change'
name2 = 'tire rotation'
name3 = 'car wash'

price1 = 35
price2 = 19
price3 = 7

auto_service = input('Enter desired auto service:\n')

if auto_service in service1:
    print('You entered: {}'.format(service1))
    print('Cost of {}: ${}'.format(name1, price1))

elif auto_service in service2:
    print('You entered: {}'.format(service2))
    print('Cost of {}: ${}'.format(name2, price2))

elif auto_service in service3:
    print('You entered: {}'.format(service3))
    print('Cost of {}: ${}'.format(name3, price3))

else:
    print('You entered: {}'.format(auto_service))
    print('Error: Requested service is not recognized')

Answer 1

prices = {
    'Oil change': 35,
    'Tire rotation': 19,
    'Car wash': 7,
}

service = input('Enter desired auto service: ')
print(f"You entered: {service}")
try:
    print(f"Cost of {service}: ${prices[service]}")
except KeyError:
    print(f"Error: requested service is not recognized")

Answer 2

是的，使用带有服务价格对的dict

services = {
    'oil change': 35,
    'tire rotation': 19,
    'car wash': 7,
    }

我将让您了解如何实现它，因为这是一个家庭作业，但这里有一个片段至少可以让您开始：if auto_service.lower() in services:

Answer 3

services = [ {'name': 'oil change',    'price': 35},
             {'name': 'tire rotation', 'price': 19},
             {'name': 'car wash',      'price': 7 } ]

auto_service = input('Enter desired auto service:\n')

for service in services:
    if auto_service.lower() in service['name']:
        print('You entered: {}'.format(service['name']))
        print('Cost of {}: ${}'.format(service['name'], service['price']))
        break