1、将下面代码放在backend-init.js文件

    $('body').on('click', '[data-tips-image]',
    function() {
    var img = new Image();
    var imgWidth = this.getAttribute('data-width') || '480px';
    img.onload = function() {
        var $content = $(img).appendTo('body').css({
            background: '#fff',
            width: imgWidth,
            height: 'auto'
        });
        Layer.open({
            type: 1,
            area: imgWidth,
            title: false,
            closeBtn: 1,
            skin: 'layui-layer-nobg',
            shadeClose: true,
            content: $content,
            end: function() {
                $(img).remove();
            },
            success: function() {}
        });
    };
    img.onerror = function(e) {};
    img.src = this.getAttribute('data-tips-image') || this.src;
});

2、修改require-table.js，添加data-tips-image