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  • Python list翻译

    class list(object):
        """
        list() -> new empty list
        list(iterable) -> new list initialized from iterable's items
        """
        def append(self, p_object): # real signature unknown; restored from __doc__
            """ L.append(object) -> None -- append object to end """
            pass
    
        def clear(self): # real signature unknown; restored from __doc__
            """ L.clear() -> None -- remove all items from L """
            pass
    
        def copy(self): # real signature unknown; restored from __doc__
            """ L.copy() -> list -- a shallow copy of L """
            return []
    
        def count(self, value): # real signature unknown; restored from __doc__
            """ L.count(value) -> integer -- return number of occurrences of value """
            return 0
    
        def extend(self, iterable): # real signature unknown; restored from __doc__
            """ L.extend(iterable) -> None -- extend list by appending elements from the iterable """
            pass
    
        def index(self, value, start=None, stop=None): # real signature unknown; restored from __doc__
            """
            L.index(value, [start, [stop]]) -> integer -- return first index of value.
            Raises ValueError if the value is not present.
            """
            return 0
    
        def insert(self, index, p_object): # real signature unknown; restored from __doc__
            """ L.insert(index, object) -- insert object before index """
            pass
    
        def pop(self, index=None): # real signature unknown; restored from __doc__
            """
            L.pop([index]) -> item -- remove and return item at index (default last).
            Raises IndexError if list is empty or index is out of range.
            """
            pass
    
        def remove(self, value): # real signature unknown; restored from __doc__
            """
            L.remove(value) -> None -- remove first occurrence of value.
            Raises ValueError if the value is not present.
            """
            pass
    
        def reverse(self): # real signature unknown; restored from __doc__
            """ L.reverse() -- reverse *IN PLACE* """
            pass
    
        def sort(self, key=None, reverse=False): # real signature unknown; restored from __doc__
            """ L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE* """
            pass
    

      list()功能

    iterable 可迭代的意思是可以用来做for训话的就是可迭代的

    a=list()

    a.append()--->在尾部追加

    a.clear()--->清空

    a.extend()--->扩展自己用另外一个可迭代的对象

    a.reverse()--->内部的元素翻转

    a.insert(0,'e')--->第一个参数是指定位置,后一个参数是要插入的内容

    a=['b','c','d']

    索引功能

    a[1]

    切片功能--->

    a[0:1]--->得到['b']

    a[0:2]--->得到['b','c'],后边的值要比索引值大一位才能取到

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  • 原文地址:https://www.cnblogs.com/ezway/p/6351373.html
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