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深入了解Python数据类型之列表

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这篇CFSDN的博客文章深入了解Python数据类型之列表由作者收集整理，如果你对这篇文章有兴趣，记得点赞哟.

一.基本数据类型 。

整数：int 字符串：str(注：\t等于一个tab键) 布尔值： bool 列表：list （元素的集合） 列表用[] 元祖：tuple 元祖用（） 字典：dict 注：所有的数据类型都存在想对应的类列里 。

二.列表所有数据类型:

基本操作:

•索引 •切片 •追加 •删除 •长度 •切片 •循环 •包含 。

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list
 
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 """
     (L.append(对象) - >——没有一个对象附加到结束)
     pass
 
   def clear( self ): # real signature unknown; restored from __doc__
     """ L.clear() -> None -- remove all items from L """
     (L.clear() - >没有,把所有项目从L)
     pass
 
   def copy( self ): # real signature unknown; restored from __doc__
     """ L.copy() -> list -- a shallow copy of L """
     (L.copy() - >列表 - L的浅拷贝)
     return []
 
   def count( self , value): # real signature unknown; restored from __doc__
     """ L.count(value) -> integer -- return number of occurrences of value """
     (L.count(价值) - >整数,返回值的出现次数)
     return 0
 
   def extend( self , iterable): # real signature unknown; restored from __doc__
     """ L.extend(iterable) -> None -- extend list by appending elements from the iterable """
     (L.extend(iterable) - >没有——从iterable扩展列表通过添加元)
     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.
     (l指数(价值,[开始,[不要]])- >整数,返回第一索引值。提出了ValueError如果不存在的价值。)
     """
     return 0
 
   def insert( self , index, p_object): # real signature unknown; restored from __doc__
     """ L.insert(index, object) -- insert object before index """
     (l插入(指数(对象)——前插入对象索引)
     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.
     (L.pop((指数))- >项目——删除并返回项指数(默认)。提出了IndexError如果列表为空或索引的范围。)
     """
     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.
     """
     (L.remove(价值) - >没有,删除第一次出现的值。提出了ValueError如果不存在的价值。)
     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
 
   def __add__( self , * args, * * kwargs): # real signature unknown
     """ Return self+value. """
     pass
 
   def __contains__( self , * args, * * kwargs): # real signature unknown
     """ Return key in self. """
     pass
 
   def __delitem__( self , * args, * * kwargs): # real signature unknown
     """ Delete self[key]. """
     pass
 
   def __eq__( self , * args, * * kwargs): # real signature unknown
     """ Return self==value. """
     pass
 
   def __getattribute__( self , * args, * * kwargs): # real signature unknown
     """ Return getattr(self, name). """
     pass
 
   def __getitem__( self , y): # real signature unknown; restored from __doc__
     """ x.__getitem__(y) <==> x[y] """
     pass
 
   def __ge__( self , * args, * * kwargs): # real signature unknown
     """ Return self>=value. """
     pass
 
   def __gt__( self , * args, * * kwargs): # real signature unknown
     """ Return self>value. """
     pass
 
   def __iadd__( self , * args, * * kwargs): # real signature unknown
     """ Implement self+=value. """
     pass
 
   def __imul__( self , * args, * * kwargs): # real signature unknown
     """ Implement self*=value. """
     pass
 
   def __init__( self , seq = ()): # known special case of list.__init__
     """
     list() -> new empty list
     list(iterable) -> new list initialized from iterable's items
     # (copied from class doc)
     """
     pass
 
   def __iter__( self , * args, * * kwargs): # real signature unknown
     """ Implement iter(self). """
     pass
 
   def __len__( self , * args, * * kwargs): # real signature unknown
     """ Return len(self). """
     pass
 
   def __le__( self , * args, * * kwargs): # real signature unknown
     """ Return self<=value. """
     pass
 
   def __lt__( self , * args, * * kwargs): # real signature unknown
     """ Return self<value. """
     pass
 
   def __mul__( self , * args, * * kwargs): # real signature unknown
     """ Return self*value.n """
     pass
 
   @staticmethod # known case of __new__
   def __new__( * args, * * kwargs): # real signature unknown
     """ Create and return a new object. See help(type) for accurate signature. """
     pass
 
   def __ne__( self , * args, * * kwargs): # real signature unknown
     """ Return self!=value. """
     pass
 
   def __repr__( self , * args, * * kwargs): # real signature unknown
     """ Return repr(self). """
     pass
 
   def __reversed__( self ): # real signature unknown; restored from __doc__
     """ L.__reversed__() -- return a reverse iterator over the list """
     pass
 
   def __rmul__( self , * args, * * kwargs): # real signature unknown
     """ Return self*value. """
     pass
 
   def __setitem__( self , * args, * * kwargs): # real signature unknown
     """ Set self[key] to value. """
     pass
 
   def __sizeof__( self ): # real signature unknown; restored from __doc__
     """ L.__sizeof__() -- size of L in memory, in bytes """
     pass
 
   __hash__ = None

三.所有列表数据类型举例 。

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#!/usr/bin/env python
 
# -*- coding:utf-8 -*-
 
 
 
#append追加
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name_list.append( 'zhang' )
 
print (name_list)
 
 
 
#count制定字符出现几次
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name_list.append( 'zhang' )
 
name_list.append( 'zhang' )
 
name_list.append( 'zhang' )
 
print (name_list.count( 'zhang' ))
 
 
 
#extend可扩展，批量往里加数据
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name = [ "aylin" , "zhang" , "yan" , "lin" ]
 
name_list.extend(name)
 
print (name_list)
 
 
 
#index找到字符所在的位置
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
print (name_list.index( 'nick' ))
 
 
 
#insert插入，往索引里面插入值
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name_list.insert( 1 , "zhang" )
 
print (name_list)
 
 
 
#pop在原列表中移除掉最后一个元素，并赋值给另一个变量
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name = name_list.pop()
 
print (name)
 
 
 
#remove移除,只移除从左边找到的第一个
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name_list.remove( 'nick' )
 
print (name_list)
 
 
 
#reverse反转
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
name_list.reverse()
 
print (name_list)
 
 
 
#del删除其中元素,删除1到3之间的
 
name_list = [ "zhangyanlin" , "suoning" , "nick" ]
 
del name_list[ 1 : 3 ]
 
print (name_list)

四.索引 。

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name_list = [ "zhangyanlin" , "suoning" "aylin" "nick" ]
 
print (name_list[ 0 ])

五.切片 。

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name_list = [ "zhangyanlin" , "suoning" "aylin" "nick" ]
 
print (name_list[ 0 : 2 ])

六.总长度len 。

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name_list = [ "zhangyanlin" , "suoning" "aylin" "nick" ]
 
print (name_list[ 1 : len (name_list)])

七.for循环 。

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name_list = [ "zhangyanlin" , "suoning" "aylin" "nick" ]
 
for i in name_list:
 
   print (i)

以上就是小编为大家带来的深入了解Python数据类型之列表全部内容了，希望大家多多支持我~ 。

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