3
以operator.add
例如:如何讓蟒蛇的數學運算符串從模塊`operator`
>>>import operator as op
>>>op.add(1,2) #means 1 + 2
3
>>>op.add.__name__
'add'
我要排序的:
>>>op.add.math_str
"+"
我可以得到所有這些數學串"+", "-", ">"...
模塊operator
支持運行時?
編輯:
>>> [eval(x) for x in [".".join(("op",x,"__doc__")) for x in dir(op)]]
['abs(a) -- Same as abs(a).',
'add(a, b) -- Same as a + b.',
'and_(a, b) -- Same as a & b.',
'concat(a, b) -- Same as a + b, for a and b sequences.',
'contains(a, b) -- Same as b in a (note reversed operands).',
'delitem(a, b) -- Same as del a[b].',
'delslice(a, b, c) -- Same as del a[b:c].',
'div(a, b) -- Same as a/b when __future__.division is not in effect.',
'str(object) -> string\n\nReturn a nice string representation of the object.\nIf the argument is a string, the return value is the same object.',
上面的代碼可以列出大多數運營商的字符串時,這意味着我可以列出與重新組件串?
謝謝!
以下是運營商文檔:http://docs.python.org/library/operator.html#mapping-operators-to-functions – Tim 2011-06-13 08:54:31