#input()让程序暂停，等待用户输入一些文本，获取用户输入，接收参数，向用户展示提示信息,input()获取的值均为字符串

'''

message = input("Tell me something, and I will repeat it back to you")

print(message)

print("Please enter your name: ")

print("Hello " + input())

'''

#若提示信息超过一行，可将提示信息存变量

'''

prompt = "If you tell us who you are, we can personalize the message you see."

prompt += "\nWhat is your first name?"

name = input(prompt)

print("\nHello, "+name+"!")

'''

#while循环

'''

current_number = 1

while current_number <= 5:

print(current_number)

current_number += 1

'''

#让用户选择何时退出

'''

prompt = "\nTell me something, and I will repeat it back to you: "

prompt += "\nEnter 'quit' to end the program."

message = ""

while message != 'quit':

message = input(prompt)

print(message)

'''

#标志，定义一个变量，判断整个程序的活动状态

'''

active = True

while active:

message = input()

if message == 'quit':

active = False

else:

print(message)

'''

#流程控制,使用break退出循环,continue退出当前循环，继续下次循环

'''

current_number = 0

while current_number < 10:

current_number += 1

if current_number % 2 == 0:

continue

print(current_number)

'''

#使用while循环处理列表和字典,要在遍历的同时进行修改，可用while循环

'''

unconfirmed_users = ['alice', 'brian', 'candace']

confirmed_users = []

while unconfirmed_users:

current_user = unconfirmed_users.pop()

confirmed_users.append(current_user)

for confirmed_user in confirmed_users:

print(confirmed_user.title())

'''

#使用用户输入来填充字典

responses = {}

#设置一个标志，指出调查是否继续

polling_active = True

while polling_active:

name = input("\nWhat is your name? ")

response = input("Which mountain would you like to climb someday? ")

#将信息存储到字典中

responses[name] = response

repeat = input("Would you like to let another person response? (yes/no) ")

if repeat == 'no':

polling_active = False

for name, response in responses.items():

print(name+" would like to climb "+response)