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基本《Python 基礎教程（第2版 修訂版）》 作者：[挪] Magnus Lie Hetland 司維 曾軍崴 譚穎華 譯

操作系統：CentOS release 6.9 (Final)

python版本：Python 2.6.6

程序編輯器：VIM - VI IMproved 7.4

報錯內容 IndentationError: unindent does not match any outer indentation level

代碼：

#!/usr/bin/env python

database = [

[‘albert‘,‘1234‘],

[‘dilbert‘,‘4242‘],

[‘smith‘,‘7524‘],

[‘jones‘,‘9843‘]

]

username = raw_input(‘User name: ‘)

pin = raw_input(‘PIN code: ‘)

if [username,pin] in database:

print ‘Access granted‘

else:

print ‘Hello,stranger‘

報錯：

[[email protected] python]# python database1.py

File "database1.py", line 13

else:

^

IndentationError: unindent does not match any outer indentation level

問題排查：

報錯提示，沒有對齊，對比分析後else 要跟if 進行左對齊

對齊後，報錯問題解決。

代碼：

#!/usr/bin/env python

database = [

[‘albert‘,‘1234‘],

[‘dilbert‘,‘4242‘],

[‘smith‘,‘7524‘],

[‘jones‘,‘9843‘]

]

username = raw_input(‘User name: ‘)

pin = raw_input(‘PIN code: ‘)

if [username,pin] in database:

print ‘Access granted‘

else:

print ‘Hello,stranger‘

再執行成功

[[email protected] python]# python database1.py

User name: albert

PIN code: 1234

Access granted

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報錯內容 IndentationError: unindent does not match any outer indentation level