检查用户名5-10 current_users = ['Tom', 'bob', 'Alice', 'zhangsan', 'Lisi', 'John'] new_users = ['zhangsan', 'tom', 'shabi', 'mahua', 'john'] for new_user in new_users: cnt = 0 for cur_user in current_users: if new_user.lower() != cur_user.lower(): cnt = c…