While_for_input.py

#首先，创建一个待验证用户列表
#和一个用于存储已验证用户的空列表
unconfirmed_users = ['alice', 'brian', 'candace']
confirmed_users = []

#验证每个用户，直到没有未验证用户为止
#将每个经过验证的用户都移到已验证用户的列表中
while unconfirmed_users:
    current_user = unconfirmed_users.pop()

    print(f"Verifying user: {current_user.title()}")
    confirmed_users.append(current_user)

#显示所有已验证的用户
print("\nThe following users have been confirmed:")
for confirmed_user in confirmed_users:
    print(confirmed_user.title())

#使用remove()函数删除列表中的特定值
pets = ['dog', 'cat', 'dog', 'goldfish', 'cat', 'rabbit', 'cat']
print(pets)

while 'cat' in pets:
    pets.remove('cat')

print(pets)

#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?")

    responses[name] = response#将回答储存在字典中
    
    #看看是否有人还要参与进来（问询是否还要继续回答）
    repeat = input("Would you like to let another person respond? (yes/no)")
    if repeat == 'no':
        Polling_active = False

print("\n--- Poll Results ---")
for name, response in responses.items():
    print(f"{name} would like to climb {response}. ")