https://www.poloxue.com/docs/backtrader/03-quickstart/Recent content in 快速开始 on 菠萝学Hugo -- gohugo.iozh-cnpoloxue123@gmail.com (POLO XUE)poloxue123@gmail.com (POLO XUE)© 2026 POLO XUEhttps://www.poloxue.com/docs/backtrader/03-quickstart/01-setup/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/01-setup/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/Li6h94v3zYg?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>在写复杂策略前，先搭好运行环境很重要。Backtrader 的核心是 Cerebro，它负责管理数据、策略和资金。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/02-cash/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/02-cash/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/5_69kMaLltk?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>本指南将介绍 Backtrader 量化回测框架中的基本配置方法，包括设置初始账户资金、配置交易佣金等核心参数。这些基础配置是进行准确回测的前提，能够帮助你模拟真实的交易环境。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/03-datafeed/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/03-datafeed/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/XVIo4X8eUks?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>本文具体讲讲如何在 Backtrader 中配置数据源，也就是 DataFeed。</p> <p>我会先演示如何给 Backtrader 添加 CSV 数据源。然后，再介绍 Backtrader 中最常用的两种 DataFeed 的使用。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/0401-basic-concept/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/0401-basic-concept/<p>在动手前，需要先理解两个关键概念：Line（线）和索引 0（Index 0）。</p> <h2 class="relative group">Line <div id="line" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#line" aria-label="锚点">#</a> </span> </h2> <p>在 Backtrader 中，几乎一切都由 Line 构成。无论是价格数据、指标还是策略内部变量，都以 Line 的形式存在。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/04-first-strategy/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/04-first-strategy/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/DfqY81TQdTg?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>本节我们将学习如何开发策略。</p> <p>第一个策略不涉及交易，只用来打印每一天（bar）的收盘价。</p> <p>策略类（Strategy）继承自 <code>bt.Strategy</code>。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/05-strategy-logic/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/05-strategy-logic/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/WFeAgO2X3oc?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>本节演示一个简单策略：如果出现连续两个交易日下跌，则执行买入操作。</p> <p>基于上节的策略类 TestStrategy 继续开发，策略逻辑在 <code>next</code> 方法中实现。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/06-sell/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/06-sell/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/E9yLLr9-brM?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>了解如何入场（多头，<code>self.buy</code>）后，还需要了解如何退出以及策略是否持有头寸。</p> <p>本节演示入场后如何退出市场。逻辑很简单：入场持有 5 根 bar 后（在第 6 根 bar 上）退出，无论盈亏。同时简化逻辑：仅在未持仓且无进行中的订单时才允许买入。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/07-commission/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/07-commission/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/NMvRzpyzlFM?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>我们已经知道如何使用 backtrader 买卖交易了。本节介绍如何监控每笔交易的成本、利润和佣金。由于佣金的存在，利润分为毛利润和净利润。</p>https://www.poloxue.com/docs/backtrader/03-quickstart/08-parameters/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/08-parameters/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/L8NjD0eLkHc?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>前面的案例中，参数都硬编码在策略中。本节介绍如何在 backtrader 中自定义参数。</p> <h2 class="relative group">定义参数 <div id="定义参数" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e5%ae%9a%e4%b9%89%e5%8f%82%e6%95%b0" aria-label="锚点">#</a> </span> </h2> <p>在策略中通过 <code>params</code> 属性定义参数，例如：</p>https://www.poloxue.com/docs/backtrader/03-quickstart/09-indicators/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/09-indicators/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/CPs4IuEvcxM?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>本节介绍如何使用技术指标作为入场和出场信号。我们将用简单移动平均线（SMA）作为演示指标。</p> <h2 class="relative group">交易规则 <div id="交易规则" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e4%ba%a4%e6%98%93%e8%a7%84%e5%88%99" aria-label="锚点">#</a> </span> </h2> <p>交易规则如下：</p>https://www.poloxue.com/docs/backtrader/03-quickstart/10-plotting/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/10-plotting/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/fsHzlg9tmik?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>通过 <code>print</code> 输出每个 bar 的信息不利于阅读，图表视觉效果更直观。backtrader 内置了绘图能力，一行代码即可：</p>https://www.poloxue.com/docs/backtrader/03-quickstart/11-optimization/Wed, 20 May 2026 00:00:00 +0000poloxue123@gmail.com (POLO XUE)https://www.poloxue.com/docs/backtrader/03-quickstart/11-optimization/<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/SxiNOUs2h00?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"></iframe> </div> <p>每个市场或交易品种都有不同的节奏，没有一种策略适合所有情况。</p> <p>前面的示例中，SMA 周期默认值为 15。这是一个可优化的参数，通过改变参数值找出最适合当前市场的设置。</p>