Python数据类型详解(二)列表


Posted in Python onMay 08, 2016

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

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

#!/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

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

五.切片

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

六.总长度len

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

七.for循环

name_list = ["zhangyanlin","suoning""aylin""nick"]
for i in name_list:
  print(i)
Python 相关文章推荐
对于Python编程中一些重用与缩减的建议
Apr 14 Python
详解Python的Django框架中的模版相关知识
Jul 15 Python
Django在win10下的安装并创建工程
Nov 20 Python
对python3中pathlib库的Path类的使用详解
Oct 14 Python
django 类视图的使用方法详解
Jul 24 Python
Python函数中的可变长参数详解
Sep 12 Python
Python MongoDB 插入数据时已存在则不执行,不存在则插入的解决方法
Sep 24 Python
python文件处理fileinput使用方法详解
Jan 02 Python
python GUI库图形界面开发之PyQt5中QWebEngineView内嵌网页与Python的数据交互传参详细方法实例
Feb 26 Python
通过实例简单了解Python sys.argv[]使用方法
Aug 04 Python
Python实现曲线拟合的最小二乘法
Feb 19 Python
Python+Selenium实现读取网易邮箱验证码
Mar 13 Python
Python数据类型详解(一)字符串
May 08 #Python
Python常用知识点汇总
May 08 #Python
Python对list列表结构中的值进行去重的方法总结
May 07 #Python
Python环境下安装使用异步任务队列包Celery的基础教程
May 07 #Python
Python编写电话薄实现增删改查功能
May 07 #Python
Python的dict字典结构操作方法学习笔记
May 07 #Python
Python 类与元类的深度挖掘 II【经验】
May 06 #Python
You might like
如何批量替换相对地址为绝对地址(利用bat批处理实现)
2013/05/27 PHP
php中将一段数据存到一个txt文件中并显示其内容
2014/08/15 PHP
PHP将身份证正反面两张照片合成一张图片的代码
2017/04/08 PHP
thinkphp5.1 框架钩子和行为用法实例分析
2020/05/25 PHP
让IE6支持min-width和max-width的方法
2010/06/25 Javascript
Prototype源码浅析 Number部分
2012/01/16 Javascript
dotopAlert 提示用户需安装播放器的代码
2012/09/17 Javascript
JS+DIV+CSS排版布局实现美观的选项卡效果
2015/10/10 Javascript
jQuery 移动端artEditor富文本编辑器
2016/01/11 Javascript
JavaScript的函数式编程基础指南
2016/03/19 Javascript
AngularJS 面试题集锦
2016/09/06 Javascript
Angularjs 动态改变title标题(兼容ios)
2016/12/29 Javascript
Vue表单验证插件Vue Validator使用方法详解
2017/04/07 Javascript
微信小程序button组件使用详解
2018/01/31 Javascript
JS执行控制之节流模式实例分析
2018/12/21 Javascript
[01:49]一目了然!DOTA2DotA快捷操作对比第二弹
2014/05/16 DOTA
[02:34]肉山说——泡妞篇
2014/09/16 DOTA
Python实现线程状态监测简单示例
2018/03/28 Python
virtualenv 指定 python 解释器的版本方法
2018/10/25 Python
Pandas透视表(pivot_table)详解
2019/07/22 Python
python使用百度文字识别功能方法详解
2019/07/23 Python
Python变量作用域LEGB用法解析
2020/02/04 Python
解决python 执行sql语句时所传参数含有单引号的问题
2020/06/06 Python
Java程序员面试90题
2013/10/19 面试题
司机辞职报告范文
2014/01/20 职场文书
安全生产投入制度
2014/01/29 职场文书
《富饶的西沙群岛》教学反思
2014/04/09 职场文书
食品销售计划书
2014/04/26 职场文书
社团活动总结模板
2014/06/30 职场文书
四风批评与自我批评范文
2014/10/14 职场文书
深入开展党的群众路线教育实践活动心得体会
2014/11/05 职场文书
地震捐款简报
2015/07/21 职场文书
大学开学感言
2015/08/01 职场文书
大学生奖学金获奖感言(范文)
2019/08/15 职场文书
Django分页器的用法你都了解吗
2021/05/26 Python
关于MybatisPlus配置双数据库驱动连接数据库问题
2022/01/22 Java/Android