如何在python 3.1中調用屬性 - easy

Question

Python 2.5所有你需要做的就是輸入「dir（filename）」，並且拉出屬性。

3.1中的命令是什麼？

Answer 1

只是dir(whateverobject)。例如：

Python 3.1rc1 (r31rc1:73141, Jun 2 2009, 12:50:02) 
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>> x=23 
>>> dir(x) 
['__abs__', '__add__', '__and__', '__bool__', '__ceil__', '__class__', '__delattr__', '__divmod__', '__doc__', '__eq__', '__float__', '__floor__', '__floordiv__', '__format__', '__ge__', '__getattribute__', '__getnewargs__', '__gt__', '__hash__', '__index__', '__init__', '__int__', '__invert__', '__le__', '__lshift__', '__lt__', '__mod__', '__mul__', '__ne__', '__neg__', '__new__', '__or__', '__pos__', '__pow__', '__radd__', '__rand__', '__rdivmod__', '__reduce__', '__reduce_ex__', '__repr__', '__rfloordiv__', '__rlshift__', '__rmod__', '__rmul__', '__ror__', '__round__', '__rpow__', '__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'imag', 'numerator', 'real'] 

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