methods: {
    // 添加了图片之后触发的事件
    fileChange (res){
        // console.log(res)
        // console.log(res.target.files[0].name)
        // 拿到 files(数组),然后提交到后端,完成之后,把新的图片加到 imgList中去
        // 加载层
        var loading = this.$weui.loading('loading')
        // 例如现在拿到了
        const that = this
        setTimeout(function(){
            // loading.hide()
            // that.imgList.push({id:4, imgUrl: 'https://csdnimg.cn/cdn/content-toolbar/csdn-logo_.png?v=20190924.1'})

            var src, url = window.URL || window.webkitURL || window.mozURL
            var files = res.target.files


            for (var i = 0, len = files.length; i < len; ++i) {
                let file = files[i];

                if (url) {
                    src = url.createObjectURL(file);
                } else {
                    //不支持 url, 则显示错误
                    // src = e.target.result;
                }   

                // src 为 src=blob:http://localhost:8080/ed1399f6-3850-475d-b9b2-4d9624be9f97 为本地的路径
                that.imgList.push({id: 4, imgUrl: src})

                // $uploaderFiles.append($(tmpl.replace('#url#', src)));
            }


            loading.hide()


        }, 2000)


    }
},