第四周第一次作业

最新推荐文章于 2021-06-19 11:41:03 发布

原创最新推荐文章于 2021-06-19 11:41:03 发布 · 232 阅读

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本文介绍了三个简单的Python程序实例，包括餐馆订位系统、判断整数倍的数字输入以及基于年龄的电影票价计算。通过这些实例，读者可以了解如何使用条件语句和循环来解决实际问题。

7-2 餐馆订位：编写一个程序，询问用户有多少人用餐。如果超过8人，就打印一条消息，指出没有空位；否则指出有空桌。

counts = int(input("Please tell me how many people want to eat here:\n"))
if counts > 8:
	print ('No empty seats!')
else:
	print ('Enough seats.')

结果：

Please tell me how many people want to eat here:
8
Enough seats.

另一结果：

Please tell me how many people want to eat here:
9
No empty seats!

7-3 10的整数倍：让用户输入一个数字，并指出这个数字是否是10的整数倍。

num = int(input('Please enter the number: '))
if not num % 10 :
	print ('It is 10*k, when k is integer.')
else :
	print ('It is not 10*k, when k is integer.')

结果：

Please enter the number: 99
It is not 10*k, when k is integer.

另一结果：

Please enter the number: -10
It is 10*k, when k is integer.

7-5 电影票：有家电影院根据观众的年龄收取不同的票价；不到3岁的观众免费；3-12岁的观众为10美元；超过12岁的观众为15美元。请编写一个循环，在其中询问用户的年龄，并指出其票价。

while True :
	age = input('Please tell me the age, q to quit:\n')
	if age == 'q':
		break
	age = int(age)
	if age >= 0 and age < 3:
		print ('free!')
	elif age >= 3 and age <= 12:
		print ('10 dollars.')
	elif age > 12:
		print ('15 dollars.')

结果：

Please tell me the age, q to quit:
-1
Please tell me the age, q to quit:
0
free!
Please tell me the age, q to quit:
5
10 dollars.
Please tell me the age, q to quit:
13
15 dollars.
Please tell me the age, q to quit:
99
15 dollars.
Please tell me the age, q to quit:
q