js实现保存文件到本地

function fake_click(obj) {

var ev = document.createEvent("MouseEvents");

ev.initMouseEvent(

"click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null

);

obj.dispatchEvent(ev);

}

function download(name, data) {

var urlObject = window.URL || window.webkitURL || window;

var downloadData = new Blob([data]);

var save_link = document.createElementNS("http://www.w3.org/1999/xhtml", "a")

save_link.href = urlObject.createObjectURL(downloadData);

save_link.download = name;

fake_click(save_link);

}

//调用方法

download("save.txt","内容");

from:https://www.cnblogs.com/frost-yen/p/10226705.html