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LuChao
16 lines
626 B
Python
16 lines
626 B
Python
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import datetime
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# def convert_to_days_ago(date_str, how_many_days):
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# """将日期字符串转换为多少天前的日期字符串"""
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# date_str = datetime.datetime.strptime(date_str, '%Y-%m-%d')
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# date_str = date_str + datetime.timedelta(days=-how_many_days)
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# return date_str.strftime('%Y-%m-%d')
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def convert_to_days_ago(date_str, how_many_days):
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"""将日期字符串转换为多少天前的日期字符串"""
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date_str = datetime.datetime.strptime(date_str, '%Y-%m-%dT%H:%M:%S')
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date_str = date_str + datetime.timedelta(days=-how_many_days)
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return date_str.strftime('%Y-%m-%dT%H:%M:%S')
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