<p>这是熊猫阵列：</p>
<pre><code>id text spam
4016 Subject: re : vacation vince : i just found ... 0
4017 Subject: re : receipts from visit jim , than... 0
4018 Subject: re : enron case study update wow ! a...0
4019 Subject: re : interest david , please , call... 0
4020 Subject: news : aurora 5 . 2 update aurora ve...0
</code></pre>
<p>我想从所有行中删除“文本”列中的“主题”一词，使其成为：</p>
<pre><code>id text spam
4016 re : vacation vince : i just found ... 0
4017 re : receipts from visit jim , than... 0
4018 re : enron case study update wow ! a...0
4019 re : interest david , please , call... 0
4020 news : aurora 5 . 2 update aurora ve...0
</code></pre>
