birthdays = {'Alice': 'Apr 1', 'Bob': 'Dec 12', 'Carol': 'Mar 4'}
while True:
print('Enter a name: (blank to quit)')
name = input()
if name == '':
break
if name in birthdays:
print(birthdays[name] + ' is the birthday of ' + name)
else:
print('I do not have birthday information for ' + name)
print('What is their birthday?')
bday = input()
birthdays[name] = bday
print('Birthday database updated.')
'''
Enter a name: (blank to quit)
Alice
Apr 1 is the birthday of Alice
Enter a name: (blank to quit)
xiaoming
I do not have birthday information for xiaoming
What is their birthday?
10.1
Birthday database updated.
Enter a name: (blank to quit)
xiaoming
10.1 is the birthday of xiaoming
Enter a name: (blank to quit)
不输入
退出程序
'''
