Python enumerate 函数 - Python零基础入门教程

悠悠 2022-10-19 15:59 327阅读 0赞

*  一.Python enumerate 函数介绍
 *  二.Python enumerate 函数使用
    
     *  1.Python enumerate 函数案例 1
     *  2.Python enumerate 函数案例 2
 *  三.猜你喜欢

> 零基础 Python 学习路线推荐 : [Python 学习目录][Python] >> [Python 基础入门][Python 1]

## 一.Python enumerate 函数介绍 ##

**[enumerate][] 函数一般用在 [for 循环][for]中，用于遍历一个序列（[列表 list][list] 或者 [元组 tuple][tuple]），该函数会同时返回元素下标和对应的元素**，语法如下：

# !usr/bin/env python
    # -*- coding:utf-8 _*-
    """
    @Author:猿说编程
    @Blog(个人博客地址): www.codersrc.com
    @File:Python enumerate 函数.py
    @Time:2021/04/15 07:37
    @Motto:不积跬步无以至千里，不积小流无以成江海，程序人生的精彩需要坚持不懈地积累！
    
    """
    
    '''
    参数介绍：
        iterable — 可迭代对象（列表、元祖、字典、迭代器、字符串等）；
        start — 索引序列的起始值，默认重0开始；
    
    返回值：同时返回元素下标和对应的元素；
    '''
    enumerate(iterable,start=0)

## 二.Python enumerate 函数使用 ##

### 1.Python enumerate 函数案例 1 ###

# !usr/bin/env python
    # -*- coding:utf-8 _*-
    """
    @Author:猿说编程
    @Blog(个人博客地址): www.codersrc.com
    @File:Python enumerate 函数.py
    @Time:2021/04/15 07:37
    @Motto:不积跬步无以至千里，不积小流无以成江海，程序人生的精彩需要坚持不懈地积累！
    
    """
    
    
    a = ['one','three','five','seven','nine']
    for index,i in enumerate(a):
        print(index,i)
    
    '''
    输出结果：
    
    0 one
    1 three
    2 five
    3 seven
    4 nine
    '''

### 2.Python enumerate 函数案例 2 ###

# !usr/bin/env python
    # -*- coding:utf-8 _*-
    """
    @Author:猿说编程
    @Blog(个人博客地址): www.codersrc.com
    @File:Python enumerate 函数.py
    @Time:2021/04/15 07:37
    @Motto:不积跬步无以至千里，不积小流无以成江海，程序人生的精彩需要坚持不懈地积累！
    
    """
    
    b = ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday']
    for index,i in enumerate(b,1):
        print("星期%d:%s"%(index,i))
    
    '''
    输出结果：
    
    星期1:Monday
    星期2:Tuesday
    星期3:Wednesday
    星期4:Thursday
    星期5:Friday
    星期6:Saturday
    星期7:Sunday
    '''

## 三.**猜你喜欢** ##

1.  [Python 字符串/列表/元组/字典之间的相互转换][Python 2]
2.  [Python 局部变量和全局变量][Python 3]
3.  [Python type 函数和 isinstance 函数区别][Python type _ isinstance]
4.  [Python is 和 == 区别][Python is _ _]
5.  [Python 可变数据类型和不可变数据类型][Python 4]
6.  [Python 浅拷贝和深拷贝][Python 5]
7.  [Python 递归函数][Python 6]
8.  [Python sys 模块][Python sys]
9.  [Python 列表 list][list]
10. [Python 元组 tuple][tuple]
11. [Python 字典 dict][Python _ dict]
12. [Python 条件推导式][Python 7]
13. [Python 列表推导式][Python 8]
14. [Python 字典推导式][Python 9]
15. [Python 函数声明和调用][Python 10]
16. [Python 不定长参数 \*argc/\*\*kargcs][Python _ _argc_kargcs]

未经允许不得转载：[猿说编程][Link 1] » [Python enumerate 函数][enumerate]

[Python]: https://www.codersrc.com/python
[Python 1]: https://www.codersrc.com/pythonsimple
[enumerate]: https://www.codersrc.com/archives/5860.html
[for]: https://www.codersrc.com/archives/4953.html
[list]: https://www.codersrc.com/archives/5061.html
[tuple]: https://www.codersrc.com/archives/5088.html
[Python 2]: https://www.codersrc.com/archives/5137.html
[Python 3]: https://www.codersrc.com/archives/5156.html
[Python type _ isinstance]: https://www.codersrc.com/archives/5214.html
[Python is _ _]: https://www.codersrc.com/archives/5288.html
[Python 4]: https://www.codersrc.com/archives/5271.html
[Python 5]: https://www.codersrc.com/archives/5492.html
[Python 6]: https://www.codersrc.com/archives/5514.html
[Python sys]: https://www.codersrc.com/archives/5535.html
[Python _ dict]: https://www.codersrc.com/archives/5114.html
[Python 7]: https://www.codersrc.com/archives/5346.html
[Python 8]: https://www.codersrc.com/archives/5359.html
[Python 9]: https://www.codersrc.com/archives/5377.html
[Python 10]: https://www.codersrc.com/archives/5405.html
[Python _ _argc_kargcs]: https://www.codersrc.com/archives/5443.html
[Link 1]: https://www.codersrc.com