擅长:python、mysql、java
<p>将函数定义更改如下,而不是在所有行上循环-</p>
<pre><code>def trigram(self):
b=self.col1
a = ["".join(j) for j in zip(*[b[i:] for i in range(3)])]
# a = ["".join(j) for j in zip(*[b[i:] for i in range(3)])]
# [b[i:i+3] for i in range(len(b)-1)]
return a
</code></pre>