擅长:python、mysql、java
<pre><code>import pandas as pd
data = pd.Series()
for file in filelist:
data2 = pd.read_csv(file, sep=" ", header = None, usecols =[0])
data = pd.concat((data,data2[0].str.lower(), axis=0)
yourData = dict(pd.Series(data).value_counts())
</code></pre>