题解 | #禁止重复注册#
禁止重复注册
http://www.nowcoder.com/practice/43acd439112c4b85a9168ad3dd7e2bd1
NP24 禁止重复注册
思路：
step1：创建两个列表；
step2：将cur列表转化为小写字母形式；
step3：遍历new_列表，对应要求，分别打印输出；
代码如下：
current_users = ['Niuniu','Niumei','GURR','LOLO']
new_users = ['GurR','Niu Ke Le','LoLo','Tuo Rui Chi']
current_users_L = [i.lower() for i in current_users]
for i in new_users:
if i.lower() in current_users_L:
print('The user name {} has already been registered! Please change it and try again!'.format(i))
else:
print('Congratulations, the user name {} is available!'.format(i))
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