下载csv

export function downloadCsv(val, key, name, keyName) {
  if (val.length) {
    let str = []
    str.push(keyName.join(',') + '\n')
    val.map((item) => {
      let temp = []
      key.map((key) => {
        temp.push(item[key])
      })
      str.push(temp.join(',') + '\n')
    })
    let url = 'data:text/csv;charset=utf-8,\ufeff' + encodeURIComponent(str.join(''))
    let downloadLink = document.createElement('a')
    downloadLink.href = url
    downloadLink.download = `${name}.csv`
    document.body.appendChild(downloadLink)
    downloadLink.click()
    document.body.removeChild(downloadLink)
  }
}
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下载csv

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