Python中pandas dataframe删除一行或一列:drop函数详解

>>>df = pd.DataFrame(np.arange(12).reshape(3,4), columns=['A', 'B', 'C', 'D'])
>>>df
 A B C D
0 0 1 2 3
1 4 5 6 7
2 8 9 10 11
#Drop columns,下面两种方法等价
>>>df.drop(['B', 'C'], axis=1)
 A D
0 0 3
1 4 7
2 8 11
>>>df.drop(columns=['B', 'C'])
 A D
0 0 3
1 4 7
2 8 11
#Drop rows by index
>>>df.drop([0, 1])
 A B C D
2 8 9 10 11