Python2 错误记录1File "<string>", line 1, in <module> NameError: name 'f' is not defined

最新推荐文章于 2025-06-13 09:00:36 发布

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最新推荐文章于 2025-06-13 09:00:36 发布

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文章标签： python

原文链接：http://www.cnblogs.com/wangyue0925/p/8927007.html

本文介绍了一个简单的Python2登录验证程序，并解决了其中由于使用input()导致的错误。通过将input()替换为raw_input()，成功避免了名称未定义的问题。

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Python 2下

count = 0
while count < 3:
      user = input('>>>')
      pwd = input('>>>')
      if user == 'wy' and pwd == '123':
          print "欢迎登陆"
          break
      else:
          print "用户名或者密码错误"
      count = count +1

造成以下输出错误:

/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 "/Users/macmini-2/Desktop/AiGuXuan 2018-04-24 09-01-22/day1.py"
>>>f
Traceback (most recent call last):
File "/Users/macmini-2/Desktop/AiGuXuan 2018-04-24 09-01-22/day1.py", line 30, in <module>
user = input('>>>')
File "<string>", line 1, in <module>
NameError: name 'f' is not defined

Process finished with exit code 1

解决办法:

count = 0
while count < 3:
      user = raw_input('>>>')
      pwd = raw_input('>>>')
      if user == 'wy' and pwd == '123':
          print "欢迎登陆"
          break
      else:
          print "用户名或者密码错误"
      count = count +1

将input改成raw_input

转载于:https://www.cnblogs.com/wangyue0925/p/8927007.html