<!DOCTYPE html> <html lang="zh-cn"> <head> <meta charset="utf-8" /> <meta name="author" content="EdieLei" /> <title>HTML5 图片上传预览</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <script type="text/javascript"> $(function () { $(‘#img‘).change(function () { var file = this.files[0]; //选择上传的文件 var r = new window.FileReader(); r.readAsDataURL(file); //Base64 $(r).load(function () { $(‘div‘).html(‘<img src="‘ + this.result + ‘" />‘); }); }); }); </script> </head> <body> <h3>HTML5 图片上传预览</h3> <input id="img" type="file" accept="image/*" /><br /> <div></div> </body> </html>
原文：http://www.cnblogs.com/chenghu/p/3682670.html