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<!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="" width="300px" height="300px" style="display: block;" /> </form> </body> </html>
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原文地址:http://www.cnblogs.com/xinzheng/p/4520147.html