擅长:python、mysql、java
<p>试着用这个来构建一个二维的旋转数组(“矩阵”):</p>
<pre><code>turns = [[4, 6, 2, 8, 1, 9, 5, 5, 3, 7, 6, 8, 2, 4]]
turns.append([1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4])
turns.append([4, 6, 2, 8, 1, 9, 6, 5, 3, 7, 6, 8, 2, 4])
turns.append([0, 0, 26, 24, 3, 7, 5, 4, 25, 25, 21, 21, 21, 21])
turns.append([0, 0, 0, 0, 7, 3, 8, 2, 0, 0, 29, 29, 29, 29])
turns.append([0, 0, 0, 0, 26, 24, 0, 0, 0, 0, 0, 0, 0, 0])
</code></pre>
<p>或者简单地说:</p>
<pre><code>turns = [[4, 6, 2, 8, 1, 9, 5, 5, 3, 7, 6, 8, 2, 4],
[1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4],
[4, 6, 2, 8, 1, 9, 6, 5, 3, 7, 6, 8, 2, 4],
[0, 0, 26, 24, 3, 7, 5, 4, 25, 25, 21, 21, 21, 21],
[0, 0, 0, 0, 7, 3, 8, 2, 0, 0, 29, 29, 29, 29],
[0, 0, 0, 0, 26, 24, 0, 0, 0, 0, 0, 0, 0, 0]]
</code></pre>
<p>如您所见,矩阵只不过是一个列表列表。你不是一开始就在建立一个矩阵-第一行<em>也是一个列表。你知道吗</p>