本文共 844 字，大约阅读时间需要 2 分钟。

pandas.DataFrame.iterrows

DataFrame.iterrows()

import numpy as npimport pandas as pddef _map(data, exp):                      for index, row in data.iterrows():   # 获取每行的index、row        for col_name in data.columns:            row[col_name] = exp(row[col_name]) # 把结果返回给data    return datadef _1map(data, exp):    _data = [[exp(row[col_name])               # 把结果转换成2级list             for col_name in data.columns]             for index, row in data.iterrows()            ]    return _dataif __name__ == "__main__":    inp = [{
  'c1':10, 'c2':100}, {
  'c1':11,'c2':110}, {
  'c1':12,'c2':120}]    df = pd.DataFrame(inp)    temp = _map(df, lambda ele: ele+1 )    print temp    _temp = _1map(df, lambda ele: ele+1)    res_data = pd.DataFrame(_temp)         # 对2级list转换成DataFrame    print res_data

转载地址：http://pimci.baihongyu.com/