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<p>考虑一个pandas df,其中的列包含长度相等的元组。在</p>
<pre><code>L1 = [['ID1', ('key1a','key1b','key1c'), ('value1a','value1b','value1c')],
['ID2', ('key2a','key2b','key2c'), ('value2a','value2b','value2c')]]
df1 = pd.DataFrame(L1,columns=['ID','Key','Value'])
>>> df1
ID Key Value
0 ID1 (key1a, key1b, key1c) (value1a, value1b, value1c)
1 ID2 (key2a, key2b, key2c) (value2a, value2b, value2c)
</code></pre>
<p>垂直展开的最简单方法是什么?公司名称:</p>
^{pr2}$