# Author: Sooele
for i in range(1,4):
user_name=input('请输入用户名')
user_pwd=input('请输入pwd')
if user_name=='admin' and user_pwd=='admin':
print('登录成功')
break
else:
print('用户名密码不正常')
if i<3:
print(f'你还有{3-i}次机会')
else:
print('对不起，三次均错误')
