擅长:python、mysql、java
<p>您正在循环中声明<code>file</code>变量。尝试:</p>
<pre><code>filenames = ['markdown/simple1.md', 'markdown/simple2.md', 'markdown/simple3.md']
merged_filecontent = ""
for file in filenames:
with open(file) as f:
merged_filecontent += f.read()+"\n"
print(merged_filecontent)
</code></pre>