const dataURLtoFile = (dataUrl, filename) => {
const arr = dataUrl.split(',')
const mime = arr[0].match(/:(.*?);/)[1]
const bstr = atob(arr[1])
let len = bstr.length
const u8arr = new Uint8Array(len)
while (len--) {
u8arr[len] = bstr.charCodeAt(len)
}
return new File([u8arr], filename, { type: mime })
}
base64转成图片文件blob
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转载自blog.csdn.net/zongxingfengyun/article/details/132282768
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