一.基本數據類型
整數: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:所有的數據類型都存在想對應的類列里
二.列表所有數據類型:
基本操作:
?索引
?切片
?追加
?刪除
?長度
?切片
?循環
?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,返回值的出現次數)
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(價值,[開始,[不要]])- >整數,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(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))- >項目――刪除并返回項指數(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
三.所有列表數據類型舉例
#!/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,批量往里加數據
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
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
name_list = ["zhangyanlin","suoning""aylin""nick"]
for i in name_list:
print(i)
以上就是小編為大家帶來的深入了解Python數據類型之列表全部內容了,希望大家多多支持腳本之家~
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