代码之家 › 专栏 › 技术社区 › Reman

如何对以大写字母开头的嵌套列表进行反向排序?

case sorting list python

Reman · 技术社区 · 7 年前

列表 r :

r= [['Paris', 10], ['amsterdam', 5], ['London', 18], ['london', 15], ['Berlin', 2], ['Stockholm', 4], ['oslo', 14], ['helsinki', 16], ['Zurich', 17]]

sorted(r, reverse=True)

[['oslo', 14], ['london', 15], ['helsinki', 16], ['amsterdam', 5], ['Zurich', 17], ['Stockholm', 4], ['Paris', 10], ['London', 18], ['Berlin', 2]]

[ ['Zurich', 17], ['Stockholm', 4], ['Paris', 10], ['London', 18], ['Berlin', 2], ['oslo', 14], ['london', 15], ['helsinki', 16], ['amsterdam', 5]]

1 回复 | 直到 7 年前

DeepSpace 7 年前

key 功能:

>> sorted(r, key=lambda e: (not e[0].islower(), e[0]), reverse=True)
[['Zurich', 17], ['Stockholm', 4], ['Paris', 10], ['London', 18], ['Berlin', 2],
 ['oslo', 14], ['london', 15], ['helsinki', 16], ['amsterdam', 5]]

推荐文章