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      <title>淡定之诗</title>
      <link>https://blog.ddzs.fun</link>
      <description>淡定之诗的个人博客. Life is a &lt;・)))&gt;&lt;&lt;. Soooooo fantasy!</description>
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          <title>Polars数据库</title>
          <pubDate>Mon, 24 Aug 2026 00:00:00 +0000</pubDate>
          <author>淡定之诗</author>
          <link>https://blog.ddzs.fun/finance/polars/</link>
          <guid>https://blog.ddzs.fun/finance/polars/</guid>
          <description xml:base="https://blog.ddzs.fun/finance/polars/">&lt;h1 id=&quot;polars&quot;&gt;Polars&lt;&#x2F;h1&gt;
&lt;p&gt;&lt;a class=&quot;external&quot; href=&quot;https:&#x2F;&#x2F;docs.pola.rs&#x2F;&quot;&gt;Polars&lt;&#x2F;a&gt;是一个使用Rust编写的支持四种语言（Rust、Python、R语言，NodeJs)的开源DataFrame库,本系列实战教程,将选择polars做为数据处理库。&lt;&#x2F;p&gt;
&lt;h1 id=&quot;kuai-su-ru-men&quot;&gt;快速入门&lt;&#x2F;h1&gt;
&lt;h2 id=&quot;an-zhuang&quot;&gt;安装&lt;&#x2F;h2&gt;
&lt;pre data-lang=&quot;bash&quot; class=&quot;language-bash &quot;&gt;&lt;code class=&quot;language-bash&quot; data-lang=&quot;bash&quot;&gt;cargo add polars -F lazy
&lt;&#x2F;code&gt;&lt;&#x2F;pre&gt;
&lt;p&gt;&lt;img src=&quot;..&#x2F;image1.png&quot; alt=&quot;polars安装截图&quot; &#x2F;&gt;&lt;&#x2F;p&gt;
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          <title>My second post</title>
          <pubDate>Thu, 28 Nov 2019 00:00:00 +0000</pubDate>
          <author>淡定之诗</author>
          <link>https://blog.ddzs.fun/blog/second/</link>
          <guid>https://blog.ddzs.fun/blog/second/</guid>
          <description xml:base="https://blog.ddzs.fun/blog/second/">&lt;p&gt;This is my second blog post.&lt;&#x2F;p&gt;
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          <title>My first post</title>
          <pubDate>Wed, 27 Nov 2019 00:00:00 +0000</pubDate>
          <author>淡定之诗</author>
          <link>https://blog.ddzs.fun/blog/first/</link>
          <guid>https://blog.ddzs.fun/blog/first/</guid>
          <description xml:base="https://blog.ddzs.fun/blog/first/">&lt;p&gt;This is my first blog post.&lt;&#x2F;p&gt;
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