一、修改DataFrame的列顺序:
代码段一:
from pandas import DataFrame
import numpy as np
df1 = DataFrame(np.arange(12).reshape((3,4)),columns = ['a','b','c','d'])
df1
代码段二:
columns = ['d','c','b','a']
df1 = df1[columns]
df1
二、修改DataFrame的列名
运行代码段一后,代码段三:
df1.columns = ['d','c','b','a']
df1