深入了解Python數(shù)據(jù)類(lèi)型之列表
更新時(shí)間：2016年06月24日 10:44:30 投稿：jingxian
下面小編就為大家?guī)?lái)一篇深入了解Python數(shù)據(jù)類(lèi)型之列表。小編覺(jué)得挺不錯(cuò)的，現(xiàn)在就分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧
一.基本數(shù)據(jù)類(lèi)型
整數(shù)：int
字符串：str(注：\t等于一個(gè)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(lèi)型都存在想對(duì)應(yīng)的類(lèi)列里
二.列表所有數(shù)據(jù)類(lèi)型：
基本操作：
•索引
•切片
•追加
•刪除
•長(zhǎng)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(duì)象)- >——沒(méi)有一個(gè)對(duì)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(méi)有,把所有項(xiàng)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(jià)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(méi)有——從iterable擴(kuò)展列表通過(guò)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(jià)值,[開(kāi)始,[不要]])- >整數(shù),返回第一索引值。提出了ValueError如果不存在的價(jià)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(duì)象)——前插入對(duì)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(xiàng)目——?jiǎng)h除并返回項(xiàng)指數(shù)(默認(rèn))。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(jià)值)- >沒(méi)有,刪除第一次出現(xiàn)的值。提出了ValueError如果不存在的價(jià)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(lèi)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(kuò)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(gè)元素，并賦值給另一個(gè)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(gè)
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(zhǎng)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)?lái)的深入了解Python數(shù)據(jù)類(lèi)型之列表全部?jī)?nèi)容了，希望大家多多支持腳本之家~
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