• Python之集合


    集合:set  是一个无序且不重复的元素集合

    class set(object):
        """
        set() -> new empty set object
        set(iterable) -> new set object
        
        Build an unordered collection of unique elements.
        """
        def add(self, *args, **kwargs): # real signature unknown
            """ 添加 """
            """
            Add an element to a set.
            
            This has no effect if the element is already present.
            """
            pass
    
        def clear(self, *args, **kwargs): # real signature unknown
            """ Remove all elements from this set. """
            pass
    
        def copy(self, *args, **kwargs): # real signature unknown
            """ Return a shallow copy of a set. """
            pass
    
        def difference(self, *args, **kwargs): # real signature unknown
            """
            Return the difference of two or more sets as a new set.
            
            (i.e. all elements that are in this set but not the others.)
            """
            pass
    
        def difference_update(self, *args, **kwargs): # real signature unknown
            """ 删除当前set中的所有包含在 new set 里的元素 """
            """ Remove all elements of another set from this set. """
            pass
    
        def discard(self, *args, **kwargs): # real signature unknown
            """ 移除元素 """
            """
            Remove an element from a set if it is a member.
            
            If the element is not a member, do nothing.
            """
            pass
    
        def intersection(self, *args, **kwargs): # real signature unknown
            """ 取交集,新创建一个set """
            """
            Return the intersection of two or more sets as a new set.
            
            (i.e. elements that are common to all of the sets.)
            """
            pass
    
        def intersection_update(self, *args, **kwargs): # real signature unknown
            """ 取交集,修改原来set """
            """ Update a set with the intersection of itself and another. """
            pass
    
        def isdisjoint(self, *args, **kwargs): # real signature unknown
            """ 如果没有交集,返回true  """
            """ Return True if two sets have a null intersection. """
            pass
    
        def issubset(self, *args, **kwargs): # real signature unknown
            """ 是否是子集 """
            """ Report whether another set contains this set. """
            pass
    
        def issuperset(self, *args, **kwargs): # real signature unknown
            """ 是否是父集 """
            """ Report whether this set contains another set. """
            pass
    
        def pop(self, *args, **kwargs): # real signature unknown
            """ 移除 """
            """
            Remove and return an arbitrary set element.
            Raises KeyError if the set is empty.
            """
            pass
    
        def remove(self, *args, **kwargs): # real signature unknown
            """ 移除 """
            """
            Remove an element from a set; it must be a member.
            
            If the element is not a member, raise a KeyError.
            """
            pass
    
        def symmetric_difference(self, *args, **kwargs): # real signature unknown
            """ 差集,创建新对象"""
            """
            Return the symmetric difference of two sets as a new set.
            
            (i.e. all elements that are in exactly one of the sets.)
            """
            pass
    
        def symmetric_difference_update(self, *args, **kwargs): # real signature unknown
            """ 差集,改变原来 """
            """ Update a set with the symmetric difference of itself and another. """
            pass
    
        def union(self, *args, **kwargs): # real signature unknown
            """ 并集 """
            """
            Return the union of sets as a new set.
            
            (i.e. all elements that are in either set.)
            """
            pass
    
        def update(self, *args, **kwargs): # real signature unknown
            """ 更新 """
            """ Update a set with the union of itself and others. """
            pass
    
        def __and__(self, y): # real signature unknown; restored from __doc__
            """ x.__and__(y) <==> x&y """
            pass
    
        def __cmp__(self, y): # real signature unknown; restored from __doc__
            """ x.__cmp__(y) <==> cmp(x,y) """
            pass
    
        def __contains__(self, y): # real signature unknown; restored from __doc__
            """ x.__contains__(y) <==> y in x. """
            pass
    
        def __eq__(self, y): # real signature unknown; restored from __doc__
            """ x.__eq__(y) <==> x==y """
            pass
    
        def __getattribute__(self, name): # real signature unknown; restored from __doc__
            """ x.__getattribute__('name') <==> x.name """
            pass
    
        def __ge__(self, y): # real signature unknown; restored from __doc__
            """ x.__ge__(y) <==> x>=y """
            pass
    
        def __gt__(self, y): # real signature unknown; restored from __doc__
            """ x.__gt__(y) <==> x>y """
            pass
    
        def __iand__(self, y): # real signature unknown; restored from __doc__
            """ x.__iand__(y) <==> x&=y """
            pass
    
        def __init__(self, seq=()): # known special case of set.__init__
            """
            set() -> new empty set object
            set(iterable) -> new set object
            
            Build an unordered collection of unique elements.
            # (copied from class doc)
            """
            pass
    
        def __ior__(self, y): # real signature unknown; restored from __doc__
            """ x.__ior__(y) <==> x|=y """
            pass
    
        def __isub__(self, y): # real signature unknown; restored from __doc__
            """ x.__isub__(y) <==> x-=y """
            pass
    
        def __iter__(self): # real signature unknown; restored from __doc__
            """ x.__iter__() <==> iter(x) """
            pass
    
        def __ixor__(self, y): # real signature unknown; restored from __doc__
            """ x.__ixor__(y) <==> x^=y """
            pass
    
        def __len__(self): # real signature unknown; restored from __doc__
            """ x.__len__() <==> len(x) """
            pass
    
        def __le__(self, y): # real signature unknown; restored from __doc__
            """ x.__le__(y) <==> x<=y """
            pass
    
        def __lt__(self, y): # real signature unknown; restored from __doc__
            """ x.__lt__(y) <==> x<y """
            pass
    
        @staticmethod # known case of __new__
        def __new__(S, *more): # real signature unknown; restored from __doc__
            """ T.__new__(S, ...) -> a new object with type S, a subtype of T """
            pass
    
        def __ne__(self, y): # real signature unknown; restored from __doc__
            """ x.__ne__(y) <==> x!=y """
            pass
    
        def __or__(self, y): # real signature unknown; restored from __doc__
            """ x.__or__(y) <==> x|y """
            pass
    
        def __rand__(self, y): # real signature unknown; restored from __doc__
            """ x.__rand__(y) <==> y&x """
            pass
    
        def __reduce__(self, *args, **kwargs): # real signature unknown
            """ Return state information for pickling. """
            pass
    
        def __repr__(self): # real signature unknown; restored from __doc__
            """ x.__repr__() <==> repr(x) """
            pass
    
        def __ror__(self, y): # real signature unknown; restored from __doc__
            """ x.__ror__(y) <==> y|x """
            pass
    
        def __rsub__(self, y): # real signature unknown; restored from __doc__
            """ x.__rsub__(y) <==> y-x """
            pass
    
        def __rxor__(self, y): # real signature unknown; restored from __doc__
            """ x.__rxor__(y) <==> y^x """
            pass
    
        def __sizeof__(self): # real signature unknown; restored from __doc__
            """ S.__sizeof__() -> size of S in memory, in bytes """
            pass
    
        def __sub__(self, y): # real signature unknown; restored from __doc__
            """ x.__sub__(y) <==> x-y """
            pass
    
        def __xor__(self, y): # real signature unknown; restored from __doc__
            """ x.__xor__(y) <==> x^y """
            pass
    
        __hash__ = None
    
    set
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  • 原文地址:https://www.cnblogs.com/pythonlearing/p/9745001.html
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