https://blog.margrop.net/en/tag/io/ Recent content in Io on Margrop Blog Hugo -- gohugo.io en-US Fri, 26 Feb 2021 10:29:31 +0800 https://blog.margrop.net/en/post/python3-io-programming/ Fri, 26 Feb 2021 10:29:31 +0800 https://blog.margrop.net/en/post/python3-io-programming/ <h1 id="file-reading-and-writing">File Reading and Writing</h1> <h2 id="read-reads-the-entire-file-at-once"><code>read()</code>: reads the entire file at once</h2> <ul> <li><code>with</code> is similar to <code>try...catch</code>, but simpler, and it automatically calls <code>close</code></li> </ul> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-py" data-lang="py"><span style="display:flex;"><span><span style="color:#66d9ef">with</span> open(<span style="color:#e6db74">&#39;/path/to/file&#39;</span>, <span style="color:#e6db74">&#39;r&#39;</span>) <span style="color:#66d9ef">as</span> f: </span></span><span style="display:flex;"><span> print(f<span style="color:#f92672">.</span>read()) </span></span></code></pre></div>