python写登录程序，,# 1.登录程序#

python写登录程序，,# 1.登录程序#

# 1.登录程序
#         username = ‘zhangmin‘
#         password = ‘123456‘
# 2.失败次数最多3次,失败3次程序退出
#         if i ==3
#             break
# 3.输入账号、密码错误提示账号、密码错误

# 5.输入正确 提示欢迎XXX登录

username = ‘zhangmin‘
password = ‘123456‘
i = 0
while True:
    user = input("请输入账号：")
    passwd = input(‘请输入密码：‘)
    if user != username or passwd !=password:
        i +=1
        print(‘账号或者密码错误‘)
        if i == 3:
            break

    else:
        print(‘欢迎%s登录‘ % username)

python写登录程序