Python数据类型之列表，,一.基本数据类型　　

Python数据类型之列表，,一.基本数据类型　　

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：

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数据类型之列表