Python中pandas.DataFrame重置索引名称

例子:

• 创建DataFrame

  ### 导入模块
  import numpy as np
  import pandas as pd
  import matplotlib.pyplot as plt
  
  test = pd.DataFrame({'a':[11,22,33],'b':[44,55,66]})
  """
      a   b
  0  11  44
  1  22  55
  2  33  66
  """
• 更改列名方法一：rename

  test.rename(columns={'a':'c'},inplace=True)
  """
      c   b
  0  11  44
  1  22  55
  2  33  66
  """"

• 更改列明方法二：直接赋值

  test.columns = ['c','b']