关于python中enumerate遍历for循环知识点解析

最新推荐文章于 2025-05-13 08:15:00 发布

原创最新推荐文章于 2025-05-13 08:15:00 发布 · 822 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#enumerate遍历

python数据处理专栏收录该内容

8 篇文章

订阅专栏

本文介绍了在Python中使用普通for循环、通过索引和利用enumerate函数遍历列表的三种方法，展示了如何通过元素、索引及指定起始索引进行遍历。

通过普通的for循环遍历

> # 通过元素来遍历
>>> seasons = ['Spring', 'Summer', 'Fall', 'Winter']
>>> count = 0
>>> for season in seasons:
...     print count,"=>", season
...     count += 1
...
0 => Spring
1 => Summer
2 => Fall
3 => Winter
>>> # 通过索引来遍历
>>> seasons = ['Spring', 'Summer', 'Fall', 'Winter']
>>> for i in range(len(seasons)):
...     print i, "=>", seasons[i]
...
0 => Spring
1 => Summer
2 => Fall
3 => Winter

通过enumerate来遍历


>>> seasons = ['Spring', 'Summer', 'Fall', 'Winter']
>>> for (index, season) in enumerate(seasons):
...     print index,"=>",season
...
0 => Spring
1 => Summer
2 => Fall
3 => Winter
>>> seasons = ['Spring', 'Summer', 'Fall', 'Winter']
>>> for (index, season) in enumerate(seasons, start=1):
...     print index,"=>",season
...
1 => Spring
2 => Summer
3 => Fall
4 => Winter

源于https://blog.youkuaiyun.com/jerry_1126/article/details/83591202