HTML:
<tr>
<td>诉讼信息查询照片</td>
<td>
<div class="table-td">
<input type="file" accept="image/*"/ multiple="multiple">
<a><img class = "verifyPic" src="http://file.88mmmoney.com/49536eb9-1aff-477a-8d43-e08910819608" id = "litigationInfoPic"/></a>
</div>
</td>
</tr>

         <div id="imgPreview">上传图片</div>

JS:
$("input").change(function () {
if (typeof (FileReader) != "undefined") {
var dvPreview = $("#imgPreview");
dvPreview.html("");
var regex = /(.jpg|.jpeg|.gif|.png|.bmp)$/;
console.log($(this)[0]);
$($(this)[0].files).each(function () {
var file = $(this);
if (regex.test(file[0].name.toLowerCase())) {
var reader = new FileReader();
reader.onload = function (e) {
var img = $()
var img = $("<img />");
img.attr("src", e.target.result);
dvPreview.append(img);
}
reader.readAsDataURL(file[0]);

            } else {
                alert(file[0].name + " is not a valid image file.");
                dvPreview.html("");
                return false;
            }
            count++;
            console.log(count);
        });
        } else {
            alert("This browser does not support HTML5 FileReader.");
        }
        
    });