擅长:python、mysql、java
<p>在R中,可以使用来自<code>stringr</code>的<code>str_remove_all</code></p>
<pre><code>stringr::str_remove_all(string, "example.*block")
#[1] " First sentence to keep.\nSecond sentence to keep.\nThird sentence to keep.\n"
</code></pre>
<p>这是</p>
<pre><code>stringr::str_replace_all(string, "example.*block", "")
</code></pre>
<p><strong>数据</strong></p>
<pre><code>string <- "example deletion words in the first block First sentence to keep.
example deletion words in the second blockSecond sentence to keep.
example deletion words in the third blockThird sentence to keep.
example deletion words in the fourth block"
</code></pre>