擅长:python、mysql、java
<p>我会尽力的</p>
<pre><code>df2.merge(df1, on=['fact_date', 'scen'])
</code></pre>
<p>它回来了</p>
<pre><code> fact_date flag scen values altdate
0 2008-08-18 0 -1 462456.29 2008-08-25
1 2008-08-18 0 0 1119881.78 2008-08-18
2 2008-08-18 0 1 1922320.74 2008-08-15
3 2008-08-18 0 2 3559026.11 2008-08-14
4 2008-08-18 0 3 3510447.61 2008-08-13
5 2008-08-18 0 4 4873269.42 2008-08-12
6 2008-08-18 0 5 5098557.55 2008-08-11
7 2008-08-18 0 6 4610888.45 2008-08-08
8 2008-08-18 0 7 4090821.69 2008-08-07
9 2008-08-18 0 8 4219340.84 2008-08-06
</code></pre>