打包下载怎么实现？

down_zbUploadClearfile({ //http接口

name:'1'

time:'7',

}).then(async (res) => {

if (res) {

this.selectData = [];

const zip = new JSZip();

zip.generateAsync({ type: "object" }).then(() => {

const downloadUrl = window.URL.createObjectURL(res);

const link = document.createElement("a");

link.href = downloadUrl;

link.setAttribute("download", `123test.zip`);

appendChild(link);

link.click();

// 释放 URL 对象

URL.revokeObjectURL(link.hrefs);

});

}

});