pandas DataFrame 按照30s 向下取整
print(ss['time'])
0 2014-01-21 03:31:11
1 2014-01-21 04:53:55
2 2014-01-21 05:16:18
3 2014-01-21 05:55:05
4 2014-01-21 08:44:53
ss['date_30s'] = pd.to_datetime(ss['time'].apply(lambda x: time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(int(x.ti.
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2021-03-04 23:23:29 ·
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