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Python数据类型的详细整理和介绍

2016-08-08 11:51:25 来源:www.45fan.com 【

Python数据类型的详细整理和介绍

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 (元素的集合)
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)
  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)

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Tags: python 数据 类型
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