python实现三次登陆

 1 oo=1
 2 while oo<=3:
 3     pp = 3 - oo
 4     ee = input('账号:')
 5     rr = input('密码:')
 6     if ee=='123' and rr=='123':
 7          print('欢迎登陆')
 8          break
 9     elif oo==3:
10          print('三次登陆失败，关闭！！')
11          break
12     else:
13          print('输入错误，还有'+str(pp)+'次机会')
14          oo+=1