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* draft * draft * draft * refine dev docs * almost * update * remove sys.file and sys.query; add sys.timestamp * update the end node to output * modify the introduction section of variable * fix typo * adjust image size * remove unnecessary list * feedback fix * remove example * feedback fix & add en/ja dev docs * correct description * fix typos * replace UI text * refinements & add zh-ja translation * feedback fixes * fix punctuation * refine heading-reference * typo * adjust casing & remove sys.timestamp from chatflow * Docs tools: 2 succeeded, some failed Rename operation failed: - Lang 'zh': File 'dify-docs/plugin-dev-zh/0211-getting-started-dify-tool.mdx' - Renaming error: Unexpected error: 'str' object has no attribute 'get' - Lang 'zh': File 'dify-docs/plugin-dev-zh/0222-datasource-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'zh': File 'dify-docs/plugin-dev-zh/0222-tool-oauth.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'zh': File 'dify-docs/plugin-dev-zh/0222-trigger-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'en': File 'dify-docs/plugin-dev-en/0211-getting-started-dify-tool.mdx' - Renaming error: Unexpected error: 'str' object has no attribute 'get' - Lang 'en': File 'dify-docs/plugin-dev-en/0222-datasource-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'en': File 'dify-docs/plugin-dev-en/0222-tool-oauth.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'en': File 'dify-docs/plugin-dev-en/0222-trigger-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'ja': File 'dify-docs/plugin-dev-ja/0211-getting-started-dify-tool.mdx' - Renaming error: Unexpected error: 'str' object has no attribute 'get' - Lang 'ja': File 'dify-docs/plugin-dev-ja/0222-datasource-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). - Lang 'ja': File 'dify-docs/plugin-dev-ja/0222-trigger-plugin.mdx' - Skipped (non-compliant): Missing/empty critical frontmatter fields for renaming: dimensions.type.primary, dimensions.type.detail, dimensions.level, standard_title, language (expected for metadata, though not used in filename suffix anymore). --------- Co-authored-by: Riskey <riskey47@dify.ai> Co-authored-by: alterxyz <88554920+alterxyz@users.noreply.github.com>
# 节点说明 **节点是工作流中的关键构成**，通过连接不同功能的节点，执行工作流的一系列操作。 ### 核心节点 <table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><a href="start"><strong>开始（Start）</strong></a></td><td>定义一个 workflow 流程启动的初始参数。</td><td></td></tr><tr><td><a href="end"><strong>结束（End）</strong></a></td><td>定义一个 workflow 流程结束的最终输出内容。</td><td></td></tr><tr><td><a href="answer"><strong>回复（Answer）</strong></a></td><td>定义一个 Chatflow 流程中的回复内容。</td><td></td></tr><tr><td><a href="llm"><strong>大语言模型（LLM）</strong></a></td><td>调用大语言模型回答问题或者对自然语言进行处理。</td><td></td></tr><tr><td><a href="knowledge-retrieval"><strong>知识检索（Knowledge Retrieval）</strong></a></td><td>从知识库中检索与用户问题相关的文本内容，可作为下游 LLM 节点的上下文。</td><td></td></tr><tr><td><a href="question-classifier"><strong>问题分类（Question Classifier）</strong></a></td><td>通过定义分类描述，LLM 能够根据用户输入选择与之相匹配的分类。</td><td></td></tr><tr><td><a href="ifelse"><strong>条件分支（IF/ELSE）</strong></a></td><td>允许你根据 if/else 条件将 workflow 拆分成两个分支。</td><td></td></tr><tr><td><a href="code"><strong>代码执行（Code）</strong></a></td><td>运行 Python / NodeJS 代码以在工作流程中执行数据转换等自定义逻辑。</td><td></td></tr><tr><td><a href="template"><strong>模板转换（Template）</strong></a></td><td>允许借助 Jinja2 的 Python 模板语言灵活地进行数据转换、文本处理等。</td><td></td></tr><tr><td><a href="variable-assigner"><strong>变量聚合（Variable Aggregator）</strong></a></td><td>将多路分支的变量聚合为一个变量，以实现下游节点统一配置。</td><td></td></tr><tr><td><a href="parameter-extractor"><strong>参数提取器（Parameter Extractor）</strong></a></td><td>利用 LLM 从自然语言推理并提取结构化参数，用于后置的工具调用或 HTTP 请求。</td><td></td></tr><tr><td><a href="iteration"><strong>迭代（Iteration）</strong></a></td><td>对列表对象执行多次步骤直至输出所有结果。</td><td></td></tr><tr><td><a href="http-request"><strong>HTTP 请求（HTTP Request）</strong></a></td><td>允许通过 HTTP 协议发送服务器请求，适用于获取外部检索结果、webhook、生成图片等情景。</td><td></td></tr><tr><td><a href="tools"><strong>工具（Tools）</strong></a></td><td>允许在工作流内调用 Dify 内置工具、自定义工具、子工作流等。</td><td></td></tr><tr><td><a href="variable-assignment"><strong>变量赋值（Variable Assigner）</strong></a></td><td>变量赋值节点用于向可写入变量（例如会话变量）进行变量赋值。</td><td></td></tr></tbody></table> {/* Contributing Section DO NOT edit this section! It will be automatically generated by the script. */} --- [编辑此页面](https://github.com/langgenius/dify-docs/edit/main/zh-hans/guides/workflow/node/README.mdx) | [提交问题](https://github.com/langgenius/dify-docs/issues/new?template=docs.yml)