原文来源: https://stackoverflow.com/questions/13021654/get-column-index-from-column-name-in-python-pandas
可以使用 .get_loc实现。
In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]}) In [46]: df.columns Out[46]: Index([apple, orange, pear], dtype=object) In [47]: df.columns.get_loc("pear") Out[47]: 2