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修炼4

时间:2016-12-01 09:40:25      阅读:250      评论:0      收藏:0      [点我收藏+]

标签:rabl   建立   拷贝   signature   清除   its   another   key   元素   

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集合 

建立  set() ={},集合没有顺序,由不可改变的数字 ,字符串,元组构成

元组的方法

 

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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
        """
        Add an element to a set,添加元素
         
        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. 清除内容"""
        pass
 
    def copy(self*args, **kwargs): # real signature unknown
        """ Return a shallow copy of a set. 浅拷贝  """
        pass
 
    def difference(self*args, **kwargs): # real signature unknown
        """
        Return the difference of two or more sets as a new set. A中存在,B中不存在
         
        (i.e. all elements that are in this set but not the others.)
        """
        pass
 
    def difference_update(self*args, **kwargs): # real signature unknown
        """ Remove all elements of another set from this set.  从当前集合中删除和B中相同的元素"""
        pass
 
    def discard(self*args, **kwargs): # real signature unknown
        """
        Remove an element from a set if it is a member.
         
        If the element is not a member, do nothing. 移除指定元素,不存在不保错
        """
        pass
 
    def intersection(self*args, **kwargs): # real signature unknown
        """
        Return the intersection of two sets as a new set. 交集
         
        (i.e. all elements that are in both sets.)
        """
        pass
 
    def intersection_update(self*args, **kwargs): # real signature unknown
        """ Update a set with the intersection of itself and another.  取交集并更更新到A中 """
        pass
 
    def isdisjoint(self*args, **kwargs): # real signature unknown
        """ Return True if two sets have a null intersection.  如果没有交集,返回True,否则返回False"""
        pass
 
    def issubset(self*args, **kwargs): # real signature unknown
        """ Report whether another set contains this set.  是否是子序列"""
        pass
 
    def issuperset(self*args, **kwargs): # real signature unknown
        """ Report whether this set contains another set. 是否是父序列"""
        pass
 
    def pop(self*args, **kwargs): # real signature unknown
        """
        Remove and return an arbitrary set element.
        Raises KeyError if the set is empty. 移除元素
        """
        pass
 
    def remove(self*args, **kwargs): # real signature unknown
        """
        Remove an element from a set; it must be a member.
         
        If the element is not a member, raise a KeyError. 移除指定元素,不存在保错
        """
        pass
 
    def symmetric_difference(self*args, **kwargs): # real signature unknown
        """
        Return the symmetric difference of two sets as a new set.  对称差集
         
        (i.e. all elements that are in exactly one of the sets.)
        """
        pass
 
    def symmetric_difference_update(self*args, **kwargs): # real signature unknown
        """ Update a set with the symmetric difference of itself and another. 对称差集,并更新到a中 """
        pass
 
    def union(self*args, **kwargs): # real signature unknown
        """
        Return the union of sets as a new set.  并集
         
        (i.e. all elements that are in either set.)
        """
        pass
 
    def update(self*args, **kwargs): # real signature unknown
        """ Update a set with the union of itself and others. 更新 """
        pass

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修炼4

标签:rabl   建立   拷贝   signature   清除   its   another   key   元素   

原文地址:http://www.cnblogs.com/honglingjin/p/6120603.html

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