js前端base64转excel并下载

代码如下 [转word只需修改blob参数即可，方法链接在另一个文章记录]

var raw = window.atob(data.result.excel_result);
var uInt8Array = new Uint8Array(raw.length);
for (var i = 0; i < raw.length; i++) {
  uInt8Array[i] = raw.charCodeAt(i);
}

const link = document.createElement("a");
const blob = new Blob([uInt8Array],{
   type: 'application/vnd.ms-excel'
})

link.style.display = 'none';
link.href = URL.createObjectURL(blob);
link.setAttribute('download','对比结果_'+$scope.你的变量+'.xls');

document.body.appendChild(link)
link.click()

document.body.removeChild(link)