题解 | #禁止重复注册#
禁止重复注册
https://www.nowcoder.com/practice/43acd439112c4b85a9168ad3dd7e2bd1
current_users = ['Niuniu','Niumei','GURR','LOLO']
new_users = ['GurR','Niu Ke Le','LoLo','Tuo Rui Chi']
for i in new_users:
if i.upper() in [current_user.upper() for current_user in current_users]:
print(f'The user name {i} has already been registered! Please change it and try again!')
else:
print(f'Congratulations, the user name {i} is available!')
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