1 function funDownload(content, filename) {
2    var eleLink = document.createElement("a");
3    eleLink.download = filename;
4    eleLink.style.display = "none";
5    // 字符内容转变成blob地址
6    var blob = new Blob([content]);
7    eleLink.href = URL.createObjectURL(blob);
8    // 触发点击
9    document.body.appendChild(eleLink);
10    eleLink.click();
11    // 然后移除
12    document.body.removeChild(eleLink);
13  },