实现用户输入用户名和密码,当用户名为 seven 或 alex 且密码为 123 时,显示登陆成功,否则登陆失败,失败时允许重复输入三次;
user_name = "seven" user_password = "123" user_name2 = "alex" user_password2 = "123" count = 0 while count < 3: name = input("用户名:") password = input("密码:") if name == user_name and password == user_password or name == user_name2 and password == user_password2: print("登录成功") break else: print("登录失败") count +=1