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#2
hzr2018-06-05 09:06
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![](zzz/editor/img/code.gif)
n = 0
while n < 3:
a = input("请输入用户名")
b = input("请输入密码")
if a == '1' and b == '2':
print('登陆成功')
break
else:
print('请重试')
n = n + 1
if n == 3:
print('登录失败')
print('---end---')
while n < 3:
a = input("请输入用户名")
b = input("请输入密码")
if a == '1' and b == '2':
print('登陆成功')
break
else:
print('请重试')
n = n + 1
if n == 3:
print('登录失败')
print('---end---')