vue3+element plus图片预览点击按钮直接显示图片的预览形式

const imgPreviewList = ref<any>([])
const showImagePreview = ref(false)
const currentBase64FileData = reactive({
  base64: '',
  name: ''
})
 
const handlePreview = async (index: number, row: any) => {
    let res = await handleDownload(index, row, true,)
    currentBase64FileData.base64 = 'data:image/png;base64,' + res?.base64
    currentBase64FileData.name = res?.name
    showImagePreview.value = true
    // 下面数组里可以放一个url，如'https://raw.githubusercontent.com/JACK-ZHANG-coming/map-depot/master/2023image-20231120091054028.png'，我这里放的是一个base64数据，也可以用来显示图片
    imgPreviewList.value = [currentBase64FileData.base64]
}
 
const closePreview = () => {
  imgPreviewList.value = []
  showImagePreview.value = false
}