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              【Python面試真題】- 解釋Python中的help()和dir()函數?

              【Python面試真題】- 解釋Python中的help()和dir()函數

              Help()函數是一個內置函數,用于查看函數或模塊用途的詳細說明:
              >>> import copy
              >>> help(copy.copy)
              
              運行結果為:
              Help on function copy in module copy:
              copy(x)
               
              Shallow copy operation on arbitrary Python objects.
               
              See the module’s __doc__ string for more info.
              
              Dir()函數也是Python內置函數,dir() 函數不帶參數時,返回當前范圍內的變量、方法和定義的類型列表;帶參數時,返回參數的屬性、方法列表。
              以下實例展示了 dir 的使用方法:
              >>> dir(copy.copy)
              
              運行結果為:
              [‘__annotations__’, ‘__call__’, ‘__class__’, ‘__closure__’, ‘__code__’, ‘__defaults__’, ‘__delattr__’, ‘__dict__’, ‘__dir__’, ‘__doc__’, ‘__eq__’, ‘__format__’, ‘__ge__’, ‘__get__’, ‘__getattribute__’, ‘__globals__’, ‘__gt__’, ‘__hash__’, ‘__init__’, ‘__init_subclass__’, ‘__kwdefaults__’, ‘__le__’, ‘__lt__’, ‘__module__’, ‘__name__’, ‘__ne__’, ‘__new__’, ‘__qualname__’, ‘__reduce__’, ‘__reduce_ex__’, ‘__repr__’, ‘__setattr__’, ‘__sizeof__’, ‘__str__’, ‘__subclasshook__’]
              



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