python pandas将索引转换为日期时间

它应该按预期工作。尝试运行以下示例。

import pandas as pdimport iodata = """value          "2015-09-25 00:46"    71.925000"2015-09-25 00:47"    71.625000"2015-09-25 00:48"    71.333333"2015-09-25 00:49"    64.571429"2015-09-25 00:50"    72.285714"""df = pd.read_table(io.StringIO(data), delim_whitespace=True)# Converting the index as datedf.index = pd.to_datetime(df.index)# Extracting hour & minutedf['A'] = df.index.hourdf['B'] = df.index.minutedf#    value  A   B# 2015-09-25 00:46:00  71.925000  0  46# 2015-09-25 00:47:00  71.625000  0  47# 2015-09-25 00:48:00  71.333333  0  48# 2015-09-25 00:49:00  64.571429  0  49# 2015-09-25 00:50:00  72.285714  0  50