擅长:python、mysql、java
<p>你可能正在寻找这样的东西:</p>
<pre><code>import pandas as pd
import numpy as np
df1 = pd.DataFrame({ 'A' : [1.1,2.7, 3.4],
'B' : [-1.,-2.5, -3.9]})
df1['sum of multipliations']=df1.sum(axis = 1)
df2 = pd.DataFrame({ 'A' : [2.],
'B' : [3.],
'sum of multipliations' : [1.]})
print df1
print df2
row = df2.ix[0]
df5=df1.mul(row, axis=1)
df5.loc['Total']= df5.sum()
print df5
</code></pre>