回答編集履歴
1
降順、を見落としていましたので修正しました。
answer
CHANGED
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@@ -4,23 +4,22 @@
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4
4
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```python
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5
5
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>>> output = [["a",0.7],["b",0.8],["c",0.02],["d",0.9]]
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6
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>>> l = [[y,x] for x,y in output]
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>>> l.sort()
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7
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>>> l.sort(reverse=True)
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8
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>>>
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8
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>>> [[x,y] for y,x in l]
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>>> output2
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10
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[['
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9
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[['d', 0.9], ['b', 0.8], ['a', 0.7], ['c', 0.02]]
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10
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```
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11
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2つめ
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```python
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>>> output = [["a",0.7],["b",0.8],["c",0.02],["d",0.9]]
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>>> sorted(output, key=lambda x: x[1])
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15
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>>> sorted(output, key=lambda x: -x[1])
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[['
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[['d', 0.9], ['b', 0.8], ['a', 0.7], ['c', 0.02]]
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```
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3つめ
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```python
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>>> from operator import itemgetter
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>>> output = [["a",0.7],["b",0.8],["c",0.02],["d",0.9]]
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>>> sorted(output, key=itemgetter(1))
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23
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>>> sorted(output, key=itemgetter(1), reverse=True)
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25
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-
[['
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24
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[['d', 0.9], ['b', 0.8], ['a', 0.7], ['c', 0.02]]
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26
25
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```
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