亚洲乱码中文字幕综合,中国熟女仑乱hd,亚洲精品乱拍国产一区二区三区,一本大道卡一卡二卡三乱码全集资源,又粗又黄又硬又爽的免费视频

深入了解Python數(shù)據(jù)類型之列表

 更新時間:2016年06月24日 10:44:30   投稿:jingxian  
下面小編就為大家?guī)硪黄钊肓私釶ython數(shù)據(jù)類型之列表。小編覺得挺不錯的,現(xiàn)在就分享給大家,也給大家做個參考。一起跟隨小編過來看看吧

一.基本數(shù)據(jù)類型

整數(shù):int
字符串:str(注:\t等于一個tab鍵)
布爾值: bool
列表:list (元素的集合)
列表用[]
元祖:tuple
元祖用()
字典:dict
注:所有的數(shù)據(jù)類型都存在想對應(yīng)的類列里

二.列表所有數(shù)據(jù)類型:

基本操作:

•索引
•切片
•追加
•刪除
•長度
•切片
•循環(huán)
•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(對象)- >——沒有一個對象附加到結(jié)束)
    pass

  def clear(self): # real signature unknown; restored from __doc__
    """ L.clear() -> None -- remove all items from L """
    (L.clear()- >沒有,把所有項目從L)
    pass

  def copy(self): # real signature unknown; restored from __doc__
    """ L.copy() -> list -- a shallow copy of L """
    (L.copy()- >列表- L的淺拷貝)
    return []

  def count(self, value): # real signature unknown; restored from __doc__
    """ L.count(value) -> integer -- return number of occurrences of value """
    (L.count(價值)- >整數(shù),返回值的出現(xiàn)次數(shù))
    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)- >沒有——從iterable擴展列表通過添加元)
    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指數(shù)(價值,[開始,[不要]])- >整數(shù),返回第一索引值。提出了ValueError如果不存在的價值。)
    """
    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(指數(shù)(對象)——前插入對象索引)
    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((指數(shù)))- >項目——刪除并返回項指數(shù)(默認)。提出了IndexError如果列表為空或索引的范圍。)
    """
    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(價值)- >沒有,刪除第一次出現(xiàn)的值。提出了ValueError如果不存在的價值。)
    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.所有列表數(shù)據(jù)類型舉例

#!/usr/bin/env python

# -*- coding:utf-8 -*-

 

#append追加

name_list = ["zhangyanlin","suoning","nick"]

name_list.append('zhang')

print(name_list)

 

#count制定字符出現(xiàn)幾次

name_list = ["zhangyanlin","suoning","nick"]

name_list.append('zhang')

name_list.append('zhang')

name_list.append('zhang')

print(name_list.count('zhang'))

 

#extend可擴展,批量往里加數(shù)據(jù)

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個元素,并賦值給另一個變量

name_list = ["zhangyanlin","suoning","nick"]

name = name_list.pop()

print(name)

 

#remove移除,只移除從左邊找到的第一個

name_list = ["zhangyanlin","suoning","nick"]

name_list.remove('nick')

print(name_list)

 

#reverse反轉(zhuǎn)

name_list = ["zhangyanlin","suoning","nick"]

name_list.reverse()

print(name_list)

 

#del刪除其中元素,刪除1到3之間的

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.總長度len

name_list = ["zhangyanlin","suoning""aylin""nick"]

print(name_list[1:len(name_list)])

七.for循環(huán)

name_list = ["zhangyanlin","suoning""aylin""nick"]

for i in name_list:

  print(i)

以上就是小編為大家?guī)淼纳钊肓私釶ython數(shù)據(jù)類型之列表全部內(nèi)容了,希望大家多多支持腳本之家~

相關(guān)文章

  • python使用ctypes調(diào)用第三方庫時出現(xiàn)undefined?symbol錯誤詳解

    python使用ctypes調(diào)用第三方庫時出現(xiàn)undefined?symbol錯誤詳解

    python中時間的庫有time和datetime,pandas也有提供相應(yīng)的時間處理函數(shù),下面這篇文章主要給大家介紹了關(guān)于python使用ctypes調(diào)用第三方庫時出現(xiàn)undefined?symbol錯誤的相關(guān)資料,需要的朋友可以參考下
    2023-02-02
  • Python3實現(xiàn)網(wǎng)頁內(nèi)容轉(zhuǎn)換成PDF文檔和圖片

    Python3實現(xiàn)網(wǎng)頁內(nèi)容轉(zhuǎn)換成PDF文檔和圖片

    pdfkit是把 HTML+CSS 格式的文件轉(zhuǎn)換成 PDF 的一種工具,它是 wkhtmltopdf 這個工具包的 python 封裝。本文將利用pdfkit實現(xiàn)網(wǎng)頁內(nèi)容轉(zhuǎn)換成PDF文檔和圖片效果,感興趣的可以學(xué)習(xí)一下
    2022-06-06
  • Python打開與讀取文件操作的常用方法

    Python打開與讀取文件操作的常用方法

    這篇文章主要介紹了Python打開與讀取文件操作的常用方法,通過編寫代碼自動化操作文件,讀寫文件、打開文件、寫入文件、刪除文件一系列都稱作為電腦的操作,需要的朋友可以參考下
    2023-07-07
  • plt.subplot()參數(shù)及使用介紹

    plt.subplot()參數(shù)及使用介紹

    本文主要介紹了plt.subplot()參數(shù)及使用介紹,文中通過示例代碼介紹的非常詳細,對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧
    2023-01-01
  • python3使用matplotlib繪制條形圖

    python3使用matplotlib繪制條形圖

    這篇文章主要為大家詳細介紹了python3使用matplotlib繪制條形圖,文中示例代碼介紹的非常詳細,具有一定的參考價值,感興趣的小伙伴們可以參考一下
    2019-03-03
  • python自動化測試selenium定位frame及iframe示例

    python自動化測試selenium定位frame及iframe示例

    這篇文章主要為大家介紹了python自動化測試selenium定位frame及iframe示例的示例詳解,有需要的朋友可以借鑒參考下,希望能夠有所幫助
    2021-11-11
  • Python解析CDD文件的代碼詳解

    Python解析CDD文件的代碼詳解

    這篇文章主要介紹了Python解析CDD文件的方法,使用Python 腳本解析CDD文件,統(tǒng)一定義,一鍵生成,十分快捷,本文給大家介紹的非常詳細,對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下
    2022-05-05
  • 解決pyinstaller打包exe文件出現(xiàn)命令窗口一閃而過的問題

    解決pyinstaller打包exe文件出現(xiàn)命令窗口一閃而過的問題

    今天小編就為大家分享一篇解決pyinstaller打包exe文件出現(xiàn)命令窗口一閃而過的問題,具有很好的參考價值,希望對大家有所幫助。一起跟隨小編過來看看吧
    2018-10-10
  • python虛擬環(huán)境的安裝和配置(virtualenv,virtualenvwrapper)

    python虛擬環(huán)境的安裝和配置(virtualenv,virtualenvwrapper)

    這篇文章主要介紹了python虛擬環(huán)境的安裝和配置(virtualenv,virtualenvwrapper),文中通過示例代碼介紹的非常詳細,對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧
    2019-08-08
  • 使用Python實現(xiàn)二終端網(wǎng)絡(luò)可靠度

    使用Python實現(xiàn)二終端網(wǎng)絡(luò)可靠度

    這里給大家分享的是實現(xiàn)二終端網(wǎng)絡(luò)可靠度的方法以及使用Python實現(xiàn)的代碼,有需要的小伙伴可以參考下。
    2021-05-05

最新評論