基础需求：
name = ‘lyp‘pwe = ‘12345‘count = 0while count < 3: name=input(‘请输入用户名>>:‘) pwe=input(‘请输入密码‘) if name == ‘lyp‘ and pwe == ‘12345‘: print(‘登录成功‘) break else: print(‘用户名或密码错误‘) count+=1
周末作业
原文：https://www.cnblogs.com/lvyipin1/p/9655267.html
