function exportSingleFile(eleLink,exportObj){
if(!exportObj.href){
let blob = new Blob([exportObj.data],exportObj.opt);
exportObj.href = URL.createObjectURL(blob);
}
eleLink.download = exportObj.fileName || '';
eleLink.href = exportObj.href;
eleLink.click();
}
function exportFile(exportObj,tips){
let eleLink = document.createElement('a');
eleLink.style.display = 'none';
eleLink.target = "blank";
Array.isArray(exportObj) || (exportObj = [exportObj])
exportObj.forEach(item=>exportSingleFile(eleLink,item))
eleLink = null;
}
console