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
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) passdef 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) passdef 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) passdef 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) passdef 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。) """passdef 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。) passdef reverse(self): # real signature unknown; restored from __doc__""" L.reverse() -- reverse *IN PLACE* """passdef sort(self, key=None, reverse=False): # real signature unknown; restored from __doc__""" L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE* """passdef__add__(self, *args, **kwargs): # real signature unknown""" Return self+value. """passdef__contains__(self, *args, **kwargs): # real signature unknown""" Return key in self. """passdef__delitem__(self, *args, **kwargs): # real signature unknown""" Delete self[key]. """passdef__eq__(self, *args, **kwargs): # real signature unknown""" Return self==value. """passdef__getattribute__(self, *args, **kwargs): # real signature unknown""" Return getattr(self, name). """passdef__getitem__(self, y): # real signature unknown; restored from __doc__""" x.__getitem__(y) <==> x[y] """passdef__ge__(self, *args, **kwargs): # real signature unknown""" Return self>=value. """passdef__gt__(self, *args, **kwargs): # real signature unknown""" Return self>value. """passdef__iadd__(self, *args, **kwargs): # real signature unknown""" Implement self+=value. """passdef__imul__(self, *args, **kwargs): # real signature unknown""" Implement self*=value. """passdef__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) """passdef__iter__(self, *args, **kwargs): # real signature unknown""" Implement iter(self). """passdef__len__(self, *args, **kwargs): # real signature unknown""" Return len(self). """passdef__le__(self, *args, **kwargs): # real signature unknown""" Return self<=value. """passdef__lt__(self, *args, **kwargs): # real signature unknown""" Return self<value. """passdef__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. """passdef__ne__(self, *args, **kwargs): # real signature unknown""" Return self!=value. """passdef__repr__(self, *args, **kwargs): # real signature unknown""" Return repr(self). """passdef__reversed__(self): # real signature unknown; restored from __doc__""" L.__reversed__() -- return a reverse iterator over the list """passdef__rmul__(self, *args, **kwargs): # real signature unknown""" Return self*value. """passdef__setitem__(self, *args, **kwargs): # real signature unknown""" Set self[key] to value. """passdef__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)
原文:http://www.cnblogs.com/aylin/p/5452750.html
【说明】:本文章由站长整理发布,文章内容不代表本站观点,如文中有侵权行为,请与本站客服联系(QQ:254677821)!