擅长:python、mysql、java
<p><strong>幼稚的方法</strong></p>
<p>除第一次出现外,每隔<code>.</code>替换</p>
<pre><code>line = "4. NC_015062_0 Rahnella sp. Y9602 plasmid pRAHAQ01, complete sequence."
count = line.count(".")
line = line[::-1].replace(".", "", count-1)[::-1]
</code></pre>
<p>这是一条单行线</p>
^{pr2}$