擅长:python、mysql、java
<p>简单而干净的螺旋形(Python3+)</p>
<pre><code>def spiralOrder(matrix):
return matrix and [*matrix.pop(0)] + spiralOrder([*zip(*matrix)][::-1])
ab = [
["H", "E", "L", "L"],
["N", "I", "E", "I"],
["O", "G", "R", "F"],
["T", "S", "A", "E"]
]
print(''.join(spiralOrder(ab)))
</code></pre>