擅长:python、mysql、java
<pre><code>def submatrix(x, i, j):
matrix = []
for row in x[:i] + x[i+1:]:
matrix.append(row[:j] + row[j+1:])
return matrix
</code></pre>
<p>示例</p>
<pre><code>>>> submatrix([[1, 2, 3],
[4, 5, 6],
[7, 8, 9]], 1, 1)
[[1, 3],
[7, 9]]
>>> submatrix([[1, 2, 3, 4],
[5, 6, 7, 8],
[2, 4, 5, 9],
[9, 6, 4, 3]], 2, 1)
[[1, 3, 4],
[5, 7, 8],
[9, 4, 3]]
</code></pre>