擅长:python、mysql、java
<pre><code>import pandas as pd
df = pd.read_csv('file.csv')
df[:-1].to_csv('newFile', sep = ',')
#adding the last row without separator:
with open('newFile', 'a') as f:
df[-1:].to_csv(f,header=f.tell()==0, sep = ' ')
</code></pre>
<p>您可以阅读更多关于方法选项<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.to_csv.html" rel="nofollow noreferrer">https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.to_csv.html</a></p>