废话不多说直接上代码

function downloadExcel(obj, name) {
  const blob = new Blob([obj], {
    type: "application/vnd.ms-excel,charset=utf-8",
  });
  const url = URL.createObjectURL(blob);
  const link = document.createElement("a");
  link.style.display = "none";
  link.href = url;
  const today = new Date().toLocaleDateString().split("/").join("-");
  const fileName = name + "-" + today;
  link.setAttribute("download", fileName);
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
}