layui-图片上传，可使用选择图片->上传图片，预览图片，删除图片（转载）

原文地址：https://gitee.com/AMortal/codes/qt8m6zk30u1g4evr95jhx13
<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>layui</title>
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" type="text/css" href="common/layui/css/layui.css" media="all">
    <style>
        .layui-upload .mark_button {
            position: absolute;
            right: 15px;
        }

        .upload-img {
            position: relative;
            display: inline-block;
            width: 300px;
            height: 200px;
            margin: 0 10px 10px 0;
            transition: box-shadow .25s;
            border-radius: 4px;
            box-shadow: 0px 10px 10px -5px rgba(0, 0, 0, 0.5);
            transition: 0.25s;
            -webkit-transition: 0.25s;
            margin-top: 15px;
        }

        .layui-upload-img {
            width: 300px;
            height: 200px;
            border-radius: 4px;
        }

        .upload-img:hover {
            cursor: pointer;
            box-shadow: 0 0 4px rgba(0,0,0,1);
            transform: scale(1.2);
            -webkit-transform: scale(1.05);
        }

        .upload-img input {
            position: absolute;
            left: 0px;
            top: 0px;
        }

        .upload-img button {
            position: absolute;
            right: 0px;
            top: 0px;
            border-radius: 6px;
        }
    </style>
    <!-- 注意：如果你直接复制所有代码到本地，上述css路径需要改成你本地的 -->
</head>

<body>

    <div class="layui-upload ">

        <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;">
            预览图：
            <div class="layui-upload-list" id="imgs">
            </div>
        </blockquote>
        <div class="mark_button">
            <button type="button" class="layui-btn layui-btn-normal" id="sele_imgs">选择文件</button>
            <button type="button" class="layui-btn" id="upload_imgs" disabled>开始上传</button>

            <button type="button" class="layui-btn layui-btn-danger" id="dele_imgs">删除选中图片</button>
        </div>

    </div>

    <script type="text/javascript" src="common/layui/layui.all.js"></script>

    <script id="img_template" type="text/html">
        <div class="upload-img" filename="{{ d.index }}">
            <input type="checkbox" name="" lay-skin="primary">
            <img src="{{  d.result }}" alt="{{ d.name }}" class="layui-upload-img">
        </div>
    </script>


    <script>

        layui.use(['upload', 'laytpl', 'form'], function () {
            var $ = layui.jquery
                , upload = layui.upload
                , laytpl = layui.laytpl
                , form = layui.form;

            //批量删除 单击事件
            $('#dele_imgs').click(function () {
                $('input:checked').each(function (index, value) {
                    var filename=$(this).parent().attr("filename");
                    delete imgFiles[filename];
                    $(this).parent().remove()
                });
            });


            var imgFiles;

            //多图片上传
            var uploadInst = upload.render({
                elem: '#sele_imgs'  //开始
                , acceptMime: 'image/*'
                , url: '/upload/'
                , auto: false
                , bindAction: '#upload_imgs'
                , multiple: true
                , size: 1024 * 12
                , choose: function (obj) {  //选择图片后事件
                    var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
                    imgFiles = files;

                    $('#upload_imgs').prop('disabled',false);

                    //预读本地文件示例，不支持ie8
                    obj.preview(function (index, file, result) {
                        var data = {
                            index: index,
                            name: file.name,
                            result: result
                        };

                        //将预览html 追加
                        laytpl(img_template.innerHTML).render(data, function (html) {
                            $('#imgs').append(html);
                        });

                        //绑定单击事件
                        $('#imgs div:last-child>img').click(function () {
                            var isChecked = $(this).siblings("input").prop("checked");
                            $(this).siblings("input").prop("checked", !isChecked);
                            return false;
                        });

                    });
                }
                , before: function (obj) { //上传前回函数
                    layer.load(); //上传loading
                }
                , done: function (res,index,upload) {    //上传完毕后事件

                    layer.closeAll('loading'); //关闭loading
                    //上传完毕

                    $('#imgs').html("");//清空操作

                    top.layer.msg("上传成功！");

                    return delete imgFiles[index]; //删除文件队列已经上传成功的文件

                }
                , error: function (index, upload) {

                    layer.closeAll('loading'); //关闭loading

                    top.layer.msg("上传失败！");

                }
            });

        });
    </script>

</body>

</html>
效果图
layui-图片上传，可使用选择图片->上传图片，预览图片，删除图片（转载）

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