标准时间格式：2012-12-21

时间转换函数：pandas.to_datatime()

# -*- coding: utf-8 -*-# 生成数据import pandas as pd data = {
   'birth':['2011/12/01','2012/12/02','2012/12/03','2012/12/04','2012/12/05']}frame = pd.DataFrame(data)print(frame)"""        birth0  2011/12/011  2012/12/022  2012/12/033  2012/12/044  2012/12/05"""# 标准时间格式frame['birth'] = pd.to_datetime(data['birth'])print(frame)"""       birth0 2011-12-011 2012-12-022 2012-12-033 2012-12-044 2012-12-05"""