amis/docs/zh-CN/components/form/uuid.md

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---
title: UUID 字段
description:
type: 0
group: null
menuName: UUID 字段
icon:
order: 30
---
## 基本用法
随机生成一个 id可以用于防止表单重复提交。
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"debug": true,
"body": [
{
"type": "uuid",
"name": "uuid"
}
]
}
```
这个字段是不显示的,上面这个例子之所以显示是因为加了 `debug: true`
## length
目前 uuid 的唯一可设置参数是 length用于生成短随机数
```schema:height="200" scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"debug": true,
"body": [
{
"type": "uuid",
"name": "uuid",
"length": 8
}
]
}
```