12 lines
571 B
Markdown
12 lines
571 B
Markdown
## zh-CN
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点击上传用户头像，并使用 `beforeUpload` 限制用户上传的图片格式和大小。
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> `beforeUpload` 的返回值可以是一个 Promise 以支持异步处理，如服务端校验等：[示例](https://upload-react-component.vercel.app/demo/before-upload#beforeupload)。
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## en-US
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Click to upload user's avatar, and validate size and format of picture with `beforeUpload`.
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> The return value of function `beforeUpload` can be a Promise to check asynchronously. [demo](https://upload-react-component.vercel.app/demo/before-upload#beforeupload)
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