pandas列级df.columns=["a","b"]重命名列名
重命名列名
import numpy as npimport pandas as pddf = pd.DataFrame(data=[{"A":"one", "B":1, "C":11}, {"A":"two", "B":2, "C":22}])
|
A |
B |
C |
| 0 |
one |
1 |
11 |
| 1 |
two |
2 |
22 |
df.columns = ['a','b','c'] # 重命名列名
|
a |
b |
c |
| 0 |
one |
1 |
11 |
| 1 |
two |
2 |
22 |
多列索引
可以给多列索引重新变回单列索引
![列级 - df.columns=["a","b"] - 重命名列名](/_next/image?url=https%3A%2F%2Fbookchips.com%2Fchips%2F6850eb130b9569655f1202b7%2F%E5%88%97%E7%BA%A7-df.columns%3D%5B_a_%2C_b_%5D-%E9%87%8D%E5%91%BD%E5%90%8D%E5%88%97%E5%90%8D.png&w=3840&q=85)