将本地图片显示到浏览器上

@{
    Layout = null;
}

<!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>
将本地图片 显示到浏览器上

将本地图片显示到浏览器上
