擅长:python、mysql、java
<p>您可以循环遍历每个文件,获取每个文件的索引,并创建一组所有索引的并集。你知道吗</p>
<pre><code>import glob
tickers = set()
for csvfile in glob.glob('*.csv'):
data = pd.read_csv(csvfile, index_col=0, header=None) # or True, however your data is set up
tickers.update(data.index.tolist())
pd.Series(list(tickers)).to_csv('index.csv', index=False)
</code></pre>