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python中怎麼查看內建函數

爱喝马黛茶的安东尼原創: 2019-06-25 16:44:175271瀏覽

內建函數，一般都是因為使用頻率比較頻繁或是元操作，所以透過內建函數的形式提供出來，透過對python的內建函數分類分析可以看出來：基本的資料操作基本上就是一些數學運算（當然除了加減乘除）、邏輯操作、集合操作、基本IO操作，然後就是對於語言本身的反射操作，還有就是字串操作，也是比較常用的，尤其需要注意的是反射操作。

python中怎麼查看內建函數

Python解釋器內建了許多函數和類型，您可以在任何時候使用它們。以下按字母順序列出它們。

python中怎麼查看內建函數

經常呼叫的時候不知道python目前版本的內建函數是哪些，可以用下面的指令查看：

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C:\Users\Administrator>python
Python 2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 32 bit (
Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> dir(sys.modules[&#39;__builtin__&#39;])
[&#39;ArithmeticError&#39;, &#39;AssertionError&#39;, &#39;AttributeError&#39;, &#39;BaseException&#39;, &#39;BufferError&#39;, &#39;BytesWarning&#39;,
 &#39;DeprecationWarning&#39;, &#39;EOFError&#39;, &#39;Ellipsis&#39;, &#39;EnvironmentError&#39;, &#39;Exception&#39;, &#39;False&#39;, &#39;FloatingPointError&#39;,
 &#39;FutureWarning&#39;, &#39;GeneratorExit&#39;, &#39;IOError&#39;, &#39;ImportError&#39;, &#39;ImportWarning&#39;, &#39;IndentationError&#39;, &#39;IndexError&#39;,
 &#39;KeyError&#39;, &#39;KeyboardInterrupt&#39;, &#39;LookupError&#39;, &#39;MemoryError&#39;, &#39;NameError&#39;,&#39;None&#39;, &#39;NotImplemented&#39;,
 &#39;NotImplementedError&#39;, &#39;OSError&#39;, &#39;OverflowError&#39;, &#39;PendingDeprecationWarning&#39;, &#39;ReferenceError&#39;, &#39;RuntimeError&#39;,
 &#39;RuntimeWarning&#39;, &#39;StandardError&#39;, &#39;StopIteration&#39;, &#39;SyntaxError&#39;, &#39;SyntaxWarning&#39;, &#39;SystemError&#39;,&#39;SystemExit&#39;, 
 &#39;TabError&#39;, &#39;True&#39;, &#39;TypeError&#39;, &#39;UnboundLocalError&#39;, &#39;UnicodeDecodeError&#39;, &#39;UnicodeEncodeError&#39;, &#39;UnicodeError&#39;,
 &#39;UnicodeTranslateError&#39;, &#39;UnicodeWarning&#39;, &#39;UserWarning&#39;, &#39;ValueError&#39;, &#39;Warning&#39;, &#39;WindowsError&#39;,
 &#39;ZeroDivisionError&#39;, &#39;__debug__&#39;, &#39;__doc__&#39;, &#39;__import__&#39;, &#39;__name__&#39;, &#39;__package__&#39;, &#39;abs&#39;,&#39;all&#39;, &#39;any&#39;, 
 &#39;apply&#39;, &#39;basestring&#39;, &#39;bin&#39;, &#39;bool&#39;, &#39;buffer&#39;, &#39;bytearray&#39;, &#39;bytes&#39;, &#39;callable&#39;, &#39;chr&#39;, &#39;classmethod&#39;, &#39;cmp&#39;,
 &#39;coerce&#39;, &#39;compile&#39;, &#39;complex&#39;, &#39;copyright&#39;, &#39;credits&#39;, &#39;delattr&#39;, &#39;dict&#39;, &#39;dir&#39;, &#39;divmod&#39;, &#39;enumerate&#39;,
 &#39;eval&#39;, &#39;execfile&#39;, &#39;exit&#39;, &#39;file&#39;, &#39;filter&#39;, &#39;float&#39;, &#39;format&#39;, &#39;frozenset&#39;, &#39;getattr&#39;, &#39;globals&#39;,
 &#39;hasattr&#39;, &#39;hash&#39;, &#39;help&#39;, &#39;hex&#39;, &#39;id&#39;, &#39;input&#39;, &#39;int&#39;, &#39;intern&#39;, &#39;isinstance&#39;, &#39;issubclass&#39;, &#39;iter&#39;,
 &#39;len&#39;, &#39;license&#39;, &#39;list&#39;, &#39;locals&#39;, &#39;long&#39;, &#39;map&#39;, &#39;max&#39;, &#39;memoryview&#39;, &#39;min&#39;, &#39;next&#39;, &#39;object&#39;, &#39;oct&#39;,
 &#39;open&#39;, &#39;ord&#39;, &#39;pow&#39;, &#39;print&#39;, &#39;property&#39;, &#39;quit&#39;, &#39;range&#39;, &#39;raw_input&#39;, &#39;reduce&#39;, &#39;reload&#39;, &#39;repr&#39;,
 &#39;reversed&#39;, &#39;round&#39;, &#39;set&#39;, &#39;setattr&#39;, &#39;slice&#39;, &#39;sorted&#39;, &#39;staticmethod&#39;, &#39;str&#39;, &#39;sum&#39;, &#39;super&#39;, &#39;tuple&#39;,
 &#39;type&#39;, &#39;unichr&#39;, &#39;unicode&#39;, &#39;vars&#39;, &#39;xrange&#39;, &#39;zip&#39;]

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