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Update p15_interpolating_variables_in_strings.rst #372

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Update p15_interpolating_variables_in_strings.rst #372

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2 changes: 1 addition & 1 deletion source/c02/p15_interpolating_variables_in_strings.rst
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Expand Up @@ -106,7 +106,7 @@ Python并没有对在字符串中简单替换变量值提供直接的支持。

>>> name = 'Guido'
>>> n = 37
>>> '%{name} has %{n} messages.' % vars()
>>> '%{name}s has %{n}d messages.' % vars()
'Guido has 37 messages.'
>>>

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