擅长:python、mysql、java
<p>时间戳是<a href="https://en.wikipedia.org/wiki/ISO_8601" rel="nofollow noreferrer">ISO 8601</a>格式的字符串,精度为微秒(应该用<a href="https://docs.python.org/2/library/datetime.html#datetime.datetime.isoformat" rel="nofollow noreferrer">datetime.isoformat</a>生成)。它们也是unicode格式(python3调用这些字符串),但只包含ASCII。使用适当的格式字符串,您可以用<a href="https://docs.python.org/2/library/datetime.html#datetime.datetime.strptime" rel="nofollow noreferrer">datetime.strptime</a>解析它们。在Pandas中,适当的函数称为<a href="http://pandas.pydata.org/pandas-docs/stable/timeseries.html#converting-to-timestamps" rel="nofollow noreferrer">to_datetime</a>。在</p>