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FastGPT/document/content/docs/introduction/guide/dashboard/workflow/tfswitch.mdx
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Co-authored-by: dreamer6680 <146868355@qq.com>
2025-07-23 21:35:03 +08:00

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---
title: 判断器
description: FastGPT 判断器模块介绍
---
## 特点
- 可重复添加
- 有外部输入
- 触发执行
![](/imgs/judgement1.png)
## 功能
对任意变量进行`IF`判断,若满足条件则执行`IF`分支,不满足条件执行`ELSE`分支。
上述例子中若「知识库引用」变量的长度等于0则执行`IF`分支,否则执行`ELSE`分支。
支持增加更多的判断条件和分支,同编程语言中的`IF`语句逻辑相同。
## 作用
适用场景有:让大模型做判断后输出固定内容,根据大模型回复内容判断是否触发后续模块。