# 创建current_users列表
current_users = ['Niuniu','Niumei','GURR','LOLO']
# 创建new_users列表
new_users = ['GurR','Niu Ke Le','LoLo','Tuo Rui Chi']
# for循环遍历
for user in new_users:
if (user.capitalize() in current_users) or (user.upper() in current_users) :
print('The user name %s has already been registered! Please change it and try again!' %user)
else:
print(f'Congratulations, the user name {user} is available!')
# 创建current_users列表
current_users = ['Niuniu','Niumei','GURR','LOLO']
# 创建new_users列表
new_users = ['GurR','Niu Ke Le','LoLo','Tuo Rui Chi']
cu = [i.upper() for i in current_users]
for user in new_users:
if user.upper() in cu:
print('The user name %s has already been registered! Please change it and try again!' %user)
else:
print(f'Congratulations, the user name {user} is available!')