我如何按降序排序这个列表?timestamp = [
"2010-04-20 10:07:30",
"2010-04-20 10:07:38",
"2010-04-20 10:07:52",
"2010-04-20 10:08:22",
"2010-04-20 10:08:22",
"2010-04-20 10:09:46",
"2010-04-20 10:10:37",
"2010-04-20 10:10:58",
"2010-04-20 10:11:50",
"2010-04-20 10:12:13",
"2010-04-20 10:12:13",
"2010-04-20 10:25:38"]
3 回答
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守着星空守着你
TA贡献1799条经验 获得超8个赞
lambda
:
timestamp.sort(key=lambda x: time.strptime(x, '%Y-%m-%d %H:%M:%S')[0:6], reverse=True)
list.sort
:
def foo(x): return time.strptime(x, '%Y-%m-%d %H:%M:%S')[0:6]timestamp.sort(key=foo, reverse=True)
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繁花不似锦
TA贡献1851条经验 获得超4个赞
sorted(timestamp, reverse=True)
timestamp.sort(reverse=True)
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蓝山帝景
TA贡献1843条经验 获得超7个赞
由于您的列表已经按升序排列,我们可以简单地反转列表。
>>> timestamp.reverse()
>>> timestamp
['2010-04-20 10:25:38',
'2010-04-20 10:12:13',
'2010-04-20 10:12:13',
'2010-04-20 10:11:50',
'2010-04-20 10:10:58',
'2010-04-20 10:10:37',
'2010-04-20 10:09:46',
'2010-04-20 10:08:22',
'2010-04-20 10:08:22',
'2010-04-20 10:07:52',
'2010-04-20 10:07:38',
'2010-04-20 10:07:30']
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