除图片外的通用下载
window.location.href = 'http://localhost:4000/public/1618880090660community.xlsx'
let base64 = _.data.content;
let type = _.data.contentType;
let str = `data:${type};base64,`;
var a = document.createElement('a');
a.setAttribute('href', str + base64);// 可以是blob 可以是base64 可以是url
a.setAttribute('download', _.data.fileName); //下载 设置这个属性一定会下载
a.click();
<!DOCTYPE html>
<html>
<head>
<script>
window.onload = function () {
let but = document.getElementById('but')
but.onclick = function () {
console.log(123)
let file = document.getElementById('files')
file.click()
//
}
let file = document.getElementById('files');
file.onchange= function(e){
var img = document.getElementById('img')
img.setAttribute('src', URL.createObjectURL(e.target.files[0]))
console.log(URL.createObjectURL(e.target.files[0]))
var a = document.createElement('a');
a.setAttribute('href', URL.createObjectURL(e.target.files[0]));
a.setAttribute('download','');
a.click();
}
}
</script>
</head>
<body>
<div>
<button id="but">
点击上传
</button>
<input type="file" onchange="file" style="display: none;" id="files">
<img id="img" alt="" width="150px" height="150px">
<script>
function file(e){
console.log(e)
var img = document.getElementById('img')
img.setAttribute('src', URL.createObjectURL(e.target.files[0]))
}
</script>
</div>
</body>
</html>
function requestFullScreen(element) {
var requestMethod = element.requestFullScreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || element.msRequestFullScreen;
if (requestMethod) {
requestMethod.call(element);
} else if (typeof window.ActiveXObject !== "undefined") {
var wscript = new ActiveXObject("WScript.Shell");
if (wscript !== null) {
wscript.SendKeys("{F11}");
}
}
}
![一个小小的移动web版音乐播放器[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)