Python数据类型之列表-----003

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

三.所有列表数据类型举例

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#!/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

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name_list = ["zhangyanlin","suoning""aylin""nick"]
print(name_list[0])

五.切片

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name_list = ["zhangyanlin","suoning""aylin""nick"]
print(name_list[0:2])

六.总长度len

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name_list = ["zhangyanlin","suoning""aylin""nick"]
print(name_list[1:len(name_list)])

七.for循环

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name_list = ["zhangyanlin","suoning""aylin""nick"]
for in name_list:
    print(i)

 

 
 
posted @ 2020-07-19 21:15  uplee  阅读(98)  评论(0编辑  收藏  举报