例子:
- 创建DataFrame
1 ### 导入模块 2 import numpy as np 3 import pandas as pd 4 import matplotlib.pyplot as plt 5 6 test = pd.DataFrame({'a':[11,22,33],'b':[44,55,66]}) 7 """ 8 a b 9 0 11 44 10 1 22 55 11 2 33 66 12 """
- 更改列名方法一：rename
1 test.rename(columns={'a':'c'},inplace=True) 2 """ 3 c b 4 0 11 44 5 1 22 55 6 2 33 66 7 """"
- 更改列明方法二：直接赋值
test.columns = ['c','b']