擅长:python、mysql、java
<pre><code>from itertools import product
x = df[df.id == 13].tof.values.astype(float)
all_combinations = list(product(x,x))
</code></pre>
<p>如果希望元素不重复,可以使用</p>
<pre><code>from itertools import combinations
x = df[df.id == 13].tof.values.astype(float)
all_combinations = list(combinations(x,2))
</code></pre>