复制代码 代码如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
/**
* 从 file 域获取 本地图片 url
*/
function getFileUrl(sourceId) {
var url;
if (navigator.userAgent.indexOf("MSIE")>=1) { // IE
url = document.getElementById(sourceId).value;
} else if(navigator.userAgent.indexOf("Firefox")>0) { // Firefox
url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));
} else if(navigator.userAgent.indexOf("Chrome")>0) { // Chrome
url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));
}
return url;
}
/**
* 将本地图片 显示到浏览器上
*/
function preImg(sourceId, targetId) {
var url = getFileUrl(sourceId);
var imgPre = document.getElementById(targetId);
imgPre.src = url;
}
</script>
</head>
<body>
<form action="">
<input type="file" name="imgOne" id="imgOne" onchange="preImg(this.id,'imgPre');" />
<img id="imgPre" src="/UploadFiles/2021-04-02/"></form>
</body>
</html>