https://blog.margrop.net/tag/io/ Recent content in Io on 魔都水滴 Hugo -- gohugo.io zh-CN Fri, 26 Feb 2021 10:29:31 +0800 https://blog.margrop.net/post/python3-io-programming/ Fri, 26 Feb 2021 10:29:31 +0800 https://blog.margrop.net/post/python3-io-programming/ <h1 id="文件读写">文件读写</h1> <h2 id="读文件read会一次性读取全部内容">读文件：read()会一次性读取全部内容</h2> <ul> <li>with 和 try&hellip;catch一样，更简介，自动调用close方法</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>