擅长:python、mysql、java
<p>使用<a href="http://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.apply.html" rel="nofollow noreferrer">^{<cd1>}</a>处理每个值:</p>
<pre><code>df['Code'] = df['Brand'].apply(lambda x: generateCode())
print(df)
Brand Price Code
0 Honda Civic 22000 AY
1 Toyota Corolla 25000 EN
2 Ford Focus 27000 VN
3 Audi A4 35000 ZZ
</code></pre>
<p>或<a href="http://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.apply.html" rel="nofollow noreferrer">^{<cd2>}</a>和<code>axis=1</code>用于每行处理:</p>
<pre><code>df['Code'] = df.apply(lambda x: generateCode(), axis=1)
print(df)
Brand Price Code
0 Honda Civic 22000 AY
1 Toyota Corolla 25000 EN
2 Ford Focus 27000 VN
3 Audi A4 35000 ZZ
</code></pre>