https://zerocoding.online/tags/agent/ZeroCodingHugo 0.165.0 & FixIt v1.0.0-alpha.2-mtmrzvotzh-CNhi@zerocoding.online (ZeroCoding)hi@zerocoding.online (ZeroCoding)Thu, 03 Sep 2026 00:00:00 +0800https://zerocoding.online/posts/ai-agent-intro/Thu, 03 Sep 2026 00:00:00 +0800hi@zerocoding.online (ZeroCoding)https://zerocoding.online/posts/ai-agent-intro/AI<p>AI Agent 是当下大模型应用最热门的方向之一。本文从最基础的 ReAct 推理循环讲起，梳理单 Agent 的核心构成：模型、工具、记忆与规划。</p> <h2 class="heading-element" id="从-react-开始"><span>从 ReAct 开始</span> <a href="#%e4%bb%8e-react-%e5%bc%80%e5%a7%8b" class="heading-mark"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a> </h2><p>ReAct（Reasoning + Acting）把「思考」和「行动」交替进行，让模型在推理的同时调用外部工具，从而突破纯文本生成的局限。</p>