第七章 用户输入和while循环
7.1 函数input（）的工作原理
动手试一试：
carname=input('Please input the car you want to hire:')
print('Let me see if I can find you a '+carname.title())
users=input('please input how many people:')
if int(users)>8:
print('no table now')
else:
print('have table')
numbers=input('please enter the number:')
if int(numbers) % 10 == 0:
print('this number Can be divided by 10!')
else:
print('this number Can not be divided by 10!')
7.2 while循环
动手试一试：
#7-4 比萨配料
prompt = "\nPlease enter the name of pizza you want to add:"
prompt += "\n(Enter 'quit' when you are finished.)"
message = ""
while message != 'quit':
message = input(prompt)
print("We will add "+message+" to your pizza!")
prompt = "\nPlease enter the age of you,I will tell you the price of cinema ticket"
prompt += "\n(Enter 'quit' when you are finished.)"
age = ""
while age != 'quit':
age = input(prompt)
if age != 'quit':
if int(age) < 3:
print("You are "+age+" 22years old,you are free! ")
if int(age) >= 3 and int(age) <= 12:
print("You are "+age+" years old,you should pay 10 dollars! ")
if int(age) > 12:
print("You are "+age+" years old,you should pay 15 dollars! ")
prompt = "\nPlease enter the name of pizza you want to add:"
prompt += "\n(Enter 'quit' when you are finished.)"
message = ""
while message != 'quit':
message = input(prompt)
if message != 'quit':
print("We will add "+message+" to your pizza!")
prompt = "\nPlease enter the age of you,I will tell you the price of cinema ticket"
prompt += "\n(Enter 'quit' when you are finished.)"
active = True
while active:
age = input(prompt)
if age == 'quit':
active = False
else:
if int(age) < 3:
print("You are "+age+" 22years old,you are free! ")
if int(age) >= 3 and int(age) <= 12:
print("You are "+age+" years old,you should pay 10 dollars! ")
if int(age) > 12:
print("You are "+age+" years old,you should pay 15 dollars! ")
prompt = "\nPlease enter the age of you,I will tell you the price of cinema ticket"
prompt += "\n(Enter 'quit' when you are finished.)"
while True:
age = input(prompt)
if age == 'quit':
break
else:
if int(age) < 3:
print("You are "+age+" 22years old,you are free! ")
if int(age) >= 3 and int(age) <= 12:
print("You are "+age+" years old,you should pay 10 dollars! ")
if int(age) > 12:
print("You are "+age+" years old,you should pay 15 dollars! ")
7.3 使用while循环来处理列表和字典
