擅长:python、mysql、java
<pre><code>In [28]: N = 0
In [29]: df.drop(df.columns[np.where(df.columns.str.contains("b")==True)[0][N]], axis=1)
Out[29]:
a1693 b113 a2609 a1
0 1 3 4 5
1 6 8 9 10
In [30]: N = 1
In [31]: df.drop(df.columns[np.where(df.columns.str.contains("b")==True)[0][N]], axis=1)
Out[31]:
a1693 b1124 a2609 a1
0 1 2 4 5
1 6 7 9 10
</code></pre>