上傳圖片並預覽

標籤：cli   preview   order   margin   maxwidth   ada   view   nbsp   click   

 <div id="preview">               <img id="imghead" border="0" src="../image/portrait_130.65212649945px_1199882_easyicon.net.png" width="100px" height="100px" onclick="$(‘#previewImg‘).click();"/>                     </div>    <input name="imgfile" type="file" onchange="previewImage(this)" style="display: none;" id="previewImg"/>

上面是html中的代碼

 

function previewImage(file) {            debugger;            var MAXWIDTH = 90;            var MAXHEIGHT = 90;            var div = document.getElementById(‘preview‘);            if (file.files && file.files[0]) {                                            div.innerHTML = ‘<img id=imghead onclick=$("#previewImg").click()>‘;                var img = document.getElementById(‘imghead‘);                img.onload = function () {                    var rect = clacImgZoomParam(MAXWIDTH, MAXHEIGHT, img.offsetWidth, img.offsetHeight);                    img.width = rect.width;                    img.height = rect.height;                                        //                 img.style.marginLeft = rect.left+‘px‘;                    img.style.marginTop = rect.top + ‘px‘;                }                var reader = new FileReader();                reader.onload = function (evt) { img.src = evt.target.result;                                   }                reader.readAsDataURL(file.files[0]);            }            else //相容IE            {                var sFilter = ‘filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale,src="‘;                file.select();                var src = document.selection.createRange().text;                div.innerHTML = ‘<img id=imghead>‘;                var img = document.getElementById(‘imghead‘);                img.filters.item(‘DXImageTransform.Microsoft.AlphaImageLoader‘).src = src;                var rect = clacImgZoomParam(MAXWIDTH, MAXHEIGHT, img.offsetWidth, img.offsetHeight);                status = (‘rect:‘ + rect.top + ‘,‘ + rect.left + ‘,‘ + rect.width + ‘,‘ + rect.height);                div.innerHTML = "<div id=divhead style=‘width:" + rect.width + "px;height:" + rect.height + "px;margin-top:" + rect.top + "px;" + sFilter + src + "\"‘></div>";            }        }

上面是js代碼 

上傳圖片並預覽