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上传后如何保留画布预览? jQuery 文件上传

[英]How to preserve canvas preview after upload? jQuery File Upload

I was wondering if someone knows how to preserve canvas preview images (generated by the script on file selection) after the files has been uploaded (clicked start or selected if auto upload is enabled).我想知道是否有人知道如何在文件上传后保留画布预览图像(由文件选择脚本生成)(如果启用了自动上传,则单击开始或选择)。

Thanks谢谢

使用thumbnailUrl 会更容易

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