js实现文件下载
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script>
function doSave(value, type, name) {
var blob;
if(typeof window.Blob == "function") {
blob = new Blob([value], {
type: type
});
} else {
var BlobBuilder = window.BlobBuilder || window.MozBlobBuilder || window.WebKitBlobBuilder || window.MSBlobBuilder;
var bb = new BlobBuilder();
bb.append(value);
blob = bb.getBlob(type);
}
var URL = window.URL || window.webkitURL;
var bloburl = URL.createObjectURL(blob);
var anchor = document.createElement("a");
if('download' in anchor) {
anchor.style.visibility = "hidden";
anchor.href = bloburl;
anchor.download = name;
document.body.appendChild(anchor);
var evt = document.createEvent("MouseEvents");
evt.initEvent("click", true, true);
anchor.dispatchEvent(evt);
document.body.removeChild(anchor);
} else if(navigator.msSaveBlob) {
navigator.msSaveBlob(blob, name);
} else {
location.href = bloburl;
}
}
var a = new Array();
for(var i = 0; i < 10; i++)
a.push(i);
function Save() {
doSave(a, "text/latex", "hello.txt");
}
</script>
</head>
<body>
<input type="button" id="savetext" value="Save" onclick="Save()" /></div>
</body>
</html>
