🐛 [Bug]: file-upload组件demo文档的上传接口需要使用mock接口

[kagol]

Version

latest

Vue Version

latest

Link to minimal reproduction

目前在demo里上传都是失败的，需要参考业界组件库，替换成mock接口

Step to reproduce

点击以下链接： https://opentiny.design/tiny-vue/zh-CN/smb-theme/components/file-upload#max-file-count

上传一个图片之后，立马上传的内容就消失了

目前在demo里上传都是失败的，需要参考业界组件库，替换成mock接口

What is expected

No response

What is actually happening

No response

What is your project name

华为云

Any additional comments (optional)

No response

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Title: 🐛 [Bug]: The upload interface of the file-upload component demo document needs to use the mock interface