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.lower() in list(map(lambda x:x.lower(),current_users)): # 统一转换为小写进行比较
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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